diff --git a/bu4/combinatory/lic.py b/bu4/combinatory/lic.py
index f9a92ca..4f1114e 100644
--- a/bu4/combinatory/lic.py
+++ b/bu4/combinatory/lic.py
@@ -1,11 +1,11 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
 from bu4.combinatory.lcombinatory import LCombinatory
-from bu4.evaluation.av.envtype import envtype
-from bu4.evaluation.av.evtype import evtype
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.evaluation.constructs.evalue import EValue
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.indexing.evaluation.eivtype import eivtype
+from bu4.linkable.evaluation.elvtype import elvtype
 from bu4.parsing.codes import CODE_CMBI
 from bu4.parsing.extensions.CodeExtension import CodeExtension
 from bu4.transform.states.transformfinished import TransformFinished
@@ -23,7 +23,7 @@ class EIC(EValue):
 
 
 class IIC(Indexed):
-    def attach(self, ev: evtype) -> Evaluable:
+    def attach(self, ev: eivtype) -> Evaluable:
         return EIC()
 
     def bytes(self) -> TransformState[bytes]:
@@ -43,7 +43,7 @@ class LIC(LCombinatory):
         self.future = set()
         self.multifuture = set()
 
-    def attach(self, env: envtype) -> Evaluable:
+    def attach(self, env: elvtype) -> Evaluable:
         return EIC()
 
     def index(self, promise: list[bytes]) -> TransformState[Indexed]:
diff --git a/bu4/combinatory/lkc.py b/bu4/combinatory/lkc.py
index 9b23102..5bd8508 100644
--- a/bu4/combinatory/lkc.py
+++ b/bu4/combinatory/lkc.py
@@ -1,12 +1,12 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
 from bu4.combinatory.lcombinatory import LCombinatory
-from bu4.evaluation.av.envtype import envtype
-from bu4.evaluation.av.evtype import evtype
 from bu4.evaluation.constructs.edelayed import EDelayed
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.evaluation.constructs.evalue import EValue
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.indexing.evaluation.eivtype import eivtype
+from bu4.linkable.evaluation.elvtype import elvtype
 from bu4.parsing.codes import CODE_CMBK
 from bu4.parsing.extensions.CodeExtension import CodeExtension
 from bu4.transform.states.transformfinished import TransformFinished
@@ -24,7 +24,7 @@ class EKC(EValue):
 
 
 class IKC(Indexed):
-    def attach(self, ev: evtype) -> Evaluable:
+    def attach(self, ev: eivtype) -> Evaluable:
         return EKC()
 
     def bytes(self) -> TransformState[bytes]:
@@ -44,7 +44,7 @@ class LKC(LCombinatory):
         self.future = set()
         self.multifuture = set()
 
-    def attach(self, env: envtype) -> Evaluable:
+    def attach(self, env: elvtype) -> Evaluable:
         return EKC()
 
     def index(self, promise: list[bytes]) -> TransformState[Indexed]:
diff --git a/bu4/combinatory/lsc.py b/bu4/combinatory/lsc.py
index 41db0bc..efc0998 100644
--- a/bu4/combinatory/lsc.py
+++ b/bu4/combinatory/lsc.py
@@ -2,13 +2,13 @@
 
 from bu4.combinatory.lcombinatory import LCombinatory
 from bu4.evaluation.av.aftervalue import AfterValue
-from bu4.evaluation.av.envtype import envtype
-from bu4.evaluation.av.evtype import evtype
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.evaluation.constructs.evalue import EValue
 from bu4.evaluation.targets.avanonymouscontainer import AVAnonymousContainer
 from bu4.evaluation.targets.avcall import AVCall
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.indexing.evaluation.eivtype import eivtype
+from bu4.linkable.evaluation.elvtype import elvtype
 from bu4.parsing.codes import CODE_CMBS
 from bu4.parsing.extensions.CodeExtension import CodeExtension
 from bu4.transform.states.transformfinished import TransformFinished
@@ -58,7 +58,7 @@ class ESC(EValue):
 
 
 class ISC(Indexed):
-    def attach(self, ev: evtype) -> Evaluable:
+    def attach(self, ev: eivtype) -> Evaluable:
         return ESC()
 
     def bytes(self) -> TransformState[bytes]:
@@ -78,7 +78,7 @@ class LSC(LCombinatory):
         self.future = set()
         self.multifuture = set()
 
-    def attach(self, env: envtype) -> Evaluable:
+    def attach(self, env: elvtype) -> Evaluable:
         return ESC()
 
     def index(self, promise: list[bytes]) -> TransformState[Indexed]:
diff --git a/bu4/indexing/constructs/icall.py b/bu4/indexing/constructs/icall.py
index 56979f5..94399eb 100644
--- a/bu4/indexing/constructs/icall.py
+++ b/bu4/indexing/constructs/icall.py
@@ -1,11 +1,11 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
 from bu4.evaluation.av.aftervalue import AfterValue
-from bu4.evaluation.av.evtype import evtype
 from bu4.evaluation.constructs.eattachable import EAttachable
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.evaluation.targets.avcall import AVCall
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.indexing.evaluation.eivtype import eivtype
 from bu4.parsing.codes import CODE_CALL
 from bu4.transform.states.aftertransform import AfterTransform
 from bu4.transform.states.transformfinished import TransformFinished
@@ -21,7 +21,7 @@ class ICall(Indexed):
         self.argument = argument
         self.lambda_ = lambda_
 
-    def attach(self, ev: evtype) -> Evaluable:
+    def attach(self, ev: eivtype) -> Evaluable:
         return AfterValue(EAttachable(ev, self.lambda_), AVCall(EAttachable(ev, self.argument)))
 
     def __str__(self):
diff --git a/bu4/indexing/constructs/idelayed.py b/bu4/indexing/constructs/idelayed.py
index 136667b..a407464 100644
--- a/bu4/indexing/constructs/idelayed.py
+++ b/bu4/indexing/constructs/idelayed.py
@@ -1,10 +1,10 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.evtype import evtype
 from bu4.evaluation.constructs.eattachable import EAttachable
 from bu4.evaluation.constructs.edelayed import EDelayed
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.indexing.evaluation.eivtype import eivtype
 from bu4.parsing.codes import CODE_DLYD
 from bu4.transform.states.aftertransform import AfterTransform
 from bu4.transform.states.transformfinished import TransformFinished
@@ -19,7 +19,7 @@ class IDelayed(Indexed):
     def __init__(self, value: Indexed):
         self.value = value
 
-    def attach(self, ev: evtype) -> Evaluable:
+    def attach(self, ev: eivtype) -> Evaluable:
         return EDelayed(EAttachable(
             ev,
             self.value
diff --git a/bu4/indexing/constructs/iexception.py b/bu4/indexing/constructs/iexception.py
index 7c0e265..ad6283e 100644
--- a/bu4/indexing/constructs/iexception.py
+++ b/bu4/indexing/constructs/iexception.py
@@ -1,9 +1,9 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.evtype import evtype
 from bu4.evaluation.constructs.eexception import EException
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.indexing.evaluation.eivtype import eivtype
 from bu4.parsing.codes import CODE_XCPT
 from bu4.transform.states.transformfinished import TransformFinished
 from bu4.transform.states.transformstate import TransformState
@@ -15,7 +15,7 @@ class IException(Indexed):
     def __init__(self, name: bytes):
         self.name = name
 
-    def attach(self, ev: evtype) -> Evaluable:
+    def attach(self, ev: eivtype) -> Evaluable:
         return EException(self.name)
 
     def __str__(self):
diff --git a/bu4/indexing/constructs/ilambda.py b/bu4/indexing/constructs/ilambda.py
index 9ebcdbd..b0cf796 100644
--- a/bu4/indexing/constructs/ilambda.py
+++ b/bu4/indexing/constructs/ilambda.py
@@ -1,9 +1,9 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.evtype import evtype
-from bu4.evaluation.constructs.eilambda import EILambda
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.indexing.evaluation.eilambda import EILambda
+from bu4.indexing.evaluation.eivtype import eivtype
 from bu4.parsing.codes import CODE_MAKE
 from bu4.transform.states.aftertransform import AfterTransform
 from bu4.transform.states.transformfinished import TransformFinished
@@ -20,7 +20,7 @@ class ILambda(Indexed):
         self.table = table
         self.memoize = memoize
 
-    def attach(self, ev: evtype) -> Evaluable:
+    def attach(self, ev: eivtype) -> Evaluable:
         return EILambda(
             [ev[i] for i in self.table],
             self.value,
diff --git a/bu4/indexing/constructs/iname.py b/bu4/indexing/constructs/iname.py
index abfb88b..f1b8672 100644
--- a/bu4/indexing/constructs/iname.py
+++ b/bu4/indexing/constructs/iname.py
@@ -1,8 +1,8 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.evtype import evtype
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.indexing.evaluation.eivtype import eivtype
 from bu4.parsing.codes import CODE_NAME
 from bu4.transform.states.transformfinished import TransformFinished
 from bu4.transform.states.transformstate import TransformState
@@ -14,7 +14,7 @@ class IName(Indexed):
     def __init__(self, index: int):
         self.index = index
 
-    def attach(self, ev: evtype) -> Evaluable:
+    def attach(self, ev: eivtype) -> Evaluable:
         return ev[self.index]
 
     def __str__(self):
diff --git a/bu4/indexing/constructs/indexed.py b/bu4/indexing/constructs/indexed.py
index 4b5e8da..2346d52 100644
--- a/bu4/indexing/constructs/indexed.py
+++ b/bu4/indexing/constructs/indexed.py
@@ -1,16 +1,16 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.evtype import evtype
 from bu4.evaluation.constructs.attachable import Attachable
 from bu4.evaluation.constructs.evaluable import Evaluable
+from bu4.indexing.evaluation.eivtype import eivtype
 from bu4.transform.states.transformstate import TransformState
 from bu4.transform.transform import transform
 
 __all__ = ('Indexed',)
 
 
-class Indexed(Attachable[evtype]):
-    def attach(self, ev: evtype) -> Evaluable:
+class Indexed(Attachable[eivtype]):
+    def attach(self, ev: eivtype) -> Evaluable:
         raise NotImplementedError
 
     def bytes(self) -> TransformState[bytes]:
diff --git a/bu4/indexing/constructs/inull.py b/bu4/indexing/constructs/inull.py
index 3d65284..c040ea3 100644
--- a/bu4/indexing/constructs/inull.py
+++ b/bu4/indexing/constructs/inull.py
@@ -1,9 +1,9 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.evtype import evtype
 from bu4.evaluation.constructs.enull import ENull
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.indexing.evaluation.eivtype import eivtype
 from bu4.parsing.codes import CODE_NULL
 from bu4.transform.states.transformfinished import TransformFinished
 from bu4.transform.states.transformstate import TransformState
@@ -12,7 +12,7 @@ __all__ = ('INull',)
 
 
 class INull(Indexed):
-    def attach(self, ev: evtype) -> Evaluable:
+    def attach(self, ev: eivtype) -> Evaluable:
         return ENull()
 
     def __str__(self):
diff --git a/bu4/evaluation/constructs/eilambda.py b/bu4/indexing/evaluation/eilambda.py
similarity index 69%
rename from bu4/evaluation/constructs/eilambda.py
rename to bu4/indexing/evaluation/eilambda.py
index c204a48..4808b3f 100644
--- a/bu4/evaluation/constructs/eilambda.py
+++ b/bu4/indexing/evaluation/eilambda.py
@@ -1,23 +1,23 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.evtype import evtype
-from bu4.evaluation.av.lambdaev import LambdaEv
 from bu4.evaluation.constructs.attachable import Attachable
 from bu4.evaluation.constructs.eattachable import EAttachable
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.evaluation.constructs.evalue import EValue
+from bu4.indexing.evaluation.eivtype import eivtype
+from bu4.indexing.evaluation.lambdaeiv import LambdaEiv
 
 __all__ = ('EILambda',)
 
 
 class EILambda(EValue):
-    def __init__(self, ev: evtype, value: Attachable[evtype], *, memoize: bool):
+    def __init__(self, ev: eivtype, value: Attachable[eivtype], *, memoize: bool):
         self.ev = ev
         self.value = value
         self.memoize = memoize
 
     def call(self, argument: Evaluable) -> Evaluable:
-        ev: evtype = LambdaEv(self.ev, argument, memoize=self.memoize)
+        ev: eivtype = LambdaEiv(self.ev, argument, memoize=self.memoize)
         return EAttachable(
             ev,
             self.value
diff --git a/bu4/evaluation/av/evtype.py b/bu4/indexing/evaluation/eivtype.py
similarity index 78%
rename from bu4/evaluation/av/evtype.py
rename to bu4/indexing/evaluation/eivtype.py
index e401bed..0b317a9 100644
--- a/bu4/evaluation/av/evtype.py
+++ b/bu4/indexing/evaluation/eivtype.py
@@ -2,7 +2,7 @@
 
 from typing import Sequence
 
-__all__ = ('evtype',)
+__all__ = ('eivtype',)
 
 from bu4.evaluation.constructs.evaluable import Evaluable
 
@@ -11,4 +11,4 @@ try:
 except ImportError:
     TypeAlias = type
 
-evtype: TypeAlias = Sequence[Evaluable]
+eivtype: TypeAlias = Sequence[Evaluable]
diff --git a/bu4/evaluation/av/lambdaev.py b/bu4/indexing/evaluation/lambdaeiv.py
similarity index 74%
rename from bu4/evaluation/av/lambdaev.py
rename to bu4/indexing/evaluation/lambdaeiv.py
index ff4c450..fc34db4 100644
--- a/bu4/evaluation/av/lambdaev.py
+++ b/bu4/indexing/evaluation/lambdaeiv.py
@@ -2,14 +2,14 @@
 
 from typing import Sequence
 
-from bu4.evaluation.av.evtype import evtype
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.evaluation.targets.avanonymouscontainer import AVAnonymousContainer
+from bu4.indexing.evaluation.eivtype import eivtype
 
-__all__ = ('LambdaEv',)
+__all__ = ('LambdaEiv',)
 
 
-class LambdaEv(Sequence[Evaluable]):
+class LambdaEiv(Sequence[Evaluable]):
     def __getitem__(self, i: int) -> Evaluable:
         if i == 0:
             return self.container
@@ -19,6 +19,6 @@ class LambdaEv(Sequence[Evaluable]):
     def __len__(self) -> int:
         return len(self.ev) + 1
 
-    def __init__(self, ev: evtype, evaluable: Evaluable, *, memoize):
+    def __init__(self, ev: eivtype, evaluable: Evaluable, *, memoize):
         self.ev = ev
         self.container = AVAnonymousContainer(evaluable).after_value if memoize else evaluable
diff --git a/bu4/evaluation/constructs/elambda.py b/bu4/linkable/evaluation/ellambda.py
similarity index 70%
rename from bu4/evaluation/constructs/elambda.py
rename to bu4/linkable/evaluation/ellambda.py
index 122bf16..e8b2ab8 100644
--- a/bu4/evaluation/constructs/elambda.py
+++ b/bu4/linkable/evaluation/ellambda.py
@@ -1,17 +1,17 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.envtype import envtype
-from bu4.evaluation.av.lambdaenv import LambdaEnv
 from bu4.evaluation.constructs.eattachable import EAttachable
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.evaluation.constructs.evalue import EValue
+from bu4.linkable.evaluation.elvtype import elvtype
+from bu4.linkable.evaluation.lambdaelv import LambdaElv
 from bu4.linking.constructs.linked import Linked
 
-__all__ = ('ELambda',)
+__all__ = ('ELLambda',)
 
 
-class ELambda(EValue):
-    def __init__(self, env: envtype, name: bytes, value: Linked):
+class ELLambda(EValue):
+    def __init__(self, env: elvtype, name: bytes, value: Linked):
         self.env = env
         self.name = name
         self.value = value
@@ -20,7 +20,7 @@ class ELambda(EValue):
 
     def call(self, argument: Evaluable) -> Evaluable:
         return EAttachable(
-            LambdaEnv(self.env, self.name, argument, memoize=self.memoize) if self.used else self.env,
+            LambdaElv(self.env, self.name, argument, memoize=self.memoize) if self.used else self.env,
             self.value
         )
 
diff --git a/bu4/evaluation/av/envtype.py b/bu4/linkable/evaluation/elvtype.py
similarity index 76%
rename from bu4/evaluation/av/envtype.py
rename to bu4/linkable/evaluation/elvtype.py
index 24e8aaa..2cf16db 100644
--- a/bu4/evaluation/av/envtype.py
+++ b/bu4/linkable/evaluation/elvtype.py
@@ -2,7 +2,7 @@
 
 from typing import Mapping
 
-__all__ = ('envtype',)
+__all__ = ('elvtype',)
 
 from bu4.evaluation.constructs.evaluable import Evaluable
 
@@ -11,4 +11,4 @@ try:
 except ImportError:
     TypeAlias = type
 
-envtype: TypeAlias = Mapping[bytes, Evaluable]
+elvtype: TypeAlias = Mapping[bytes, Evaluable]
diff --git a/bu4/evaluation/av/lambdaenv.py b/bu4/linkable/evaluation/lambdaelv.py
similarity index 83%
rename from bu4/evaluation/av/lambdaenv.py
rename to bu4/linkable/evaluation/lambdaelv.py
index 3a3e09c..ba19ce6 100644
--- a/bu4/evaluation/av/lambdaenv.py
+++ b/bu4/linkable/evaluation/lambdaelv.py
@@ -2,14 +2,14 @@
 
 from typing import Mapping, Iterator
 
-from bu4.evaluation.av.envtype import envtype
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.evaluation.targets.avnamedcontainer import AVNamedContainer
+from bu4.linkable.evaluation.elvtype import elvtype
 
-__all__ = ('LambdaEnv',)
+__all__ = ('LambdaElv',)
 
 
-class LambdaEnv(Mapping[bytes, Evaluable]):
+class LambdaElv(Mapping[bytes, Evaluable]):
     def __getitem__(self, k: bytes) -> Evaluable:
         if k == self.name:
             return self.container
@@ -23,7 +23,7 @@ class LambdaEnv(Mapping[bytes, Evaluable]):
         yield self.name
         yield from self.env
 
-    def __init__(self, env: envtype, name: bytes, evaluable: Evaluable, *, memoize):
+    def __init__(self, env: elvtype, name: bytes, evaluable: Evaluable, *, memoize):
         self.env = env
         self.name = name
         self.container = AVNamedContainer(evaluable, name).after_value if memoize else evaluable
diff --git a/bu4/linking/constructs/lcall.py b/bu4/linking/constructs/lcall.py
index d3a2260..7b18a37 100644
--- a/bu4/linking/constructs/lcall.py
+++ b/bu4/linking/constructs/lcall.py
@@ -1,12 +1,12 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
 from bu4.evaluation.av.aftervalue import AfterValue
-from bu4.evaluation.av.envtype import envtype
 from bu4.evaluation.constructs.eattachable import EAttachable
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.evaluation.targets.avcall import AVCall
 from bu4.indexing.constructs.icall import ICall
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.linkable.evaluation.elvtype import elvtype
 from bu4.linking.constructs.linked import Linked
 from bu4.transform.states.aftertransform import AfterTransform
 from bu4.transform.states.transformfinished import TransformFinished
@@ -31,7 +31,7 @@ class LCall(Linked):
                 (self.argument.future & self.lambda_.future)
         )
 
-    def attach(self, env: envtype) -> Evaluable:
+    def attach(self, env: elvtype) -> Evaluable:
         return AfterValue(EAttachable(env, self.lambda_), AVCall(EAttachable(env, self.argument)))
 
     def index(self, promise: list[bytes]) -> TransformState[Indexed]:
diff --git a/bu4/linking/constructs/ldelayed.py b/bu4/linking/constructs/ldelayed.py
index 457f502..7d777e7 100644
--- a/bu4/linking/constructs/ldelayed.py
+++ b/bu4/linking/constructs/ldelayed.py
@@ -1,11 +1,11 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.envtype import envtype
 from bu4.evaluation.constructs.eattachable import EAttachable
 from bu4.evaluation.constructs.edelayed import EDelayed
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.indexing.constructs.idelayed import IDelayed
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.linkable.evaluation.elvtype import elvtype
 from bu4.linking.constructs.linked import Linked
 from bu4.transform.states.aftertransform import AfterTransform
 from bu4.transform.states.transformfinished import TransformFinished
@@ -24,7 +24,7 @@ class LDelayed(Linked):
         self.future = self.value.future
         self.multifuture = self.future
 
-    def attach(self, env: envtype) -> Evaluable:
+    def attach(self, env: elvtype) -> Evaluable:
         return EDelayed(EAttachable(
             env,
             self.value
diff --git a/bu4/linking/constructs/lexception.py b/bu4/linking/constructs/lexception.py
index 8dc4c54..27e7c8f 100644
--- a/bu4/linking/constructs/lexception.py
+++ b/bu4/linking/constructs/lexception.py
@@ -1,10 +1,10 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.envtype import envtype
 from bu4.evaluation.constructs.eexception import EException
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.indexing.constructs.iexception import IException
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.linkable.evaluation.elvtype import elvtype
 from bu4.linking.constructs.linked import Linked
 from bu4.transform.states.transformfinished import TransformFinished
 from bu4.transform.states.transformstate import TransformState
@@ -18,7 +18,7 @@ class LException(Linked):
         self.future = set()
         self.multifuture = set()
 
-    def attach(self, env: envtype) -> Evaluable:
+    def attach(self, env: elvtype) -> Evaluable:
         return EException(self.name)
 
     def index(self, promise: list[bytes]) -> TransformState[Indexed]:
diff --git a/bu4/linking/constructs/linked.py b/bu4/linking/constructs/linked.py
index bd7fd38..00cbc34 100644
--- a/bu4/linking/constructs/linked.py
+++ b/bu4/linking/constructs/linked.py
@@ -1,19 +1,19 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.envtype import envtype
 from bu4.evaluation.constructs.attachable import Attachable
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.linkable.evaluation.elvtype import elvtype
 from bu4.transform.states.transformstate import TransformState
 
 __all__ = ('Linked',)
 
 
-class Linked(Attachable[envtype]):
+class Linked(Attachable[elvtype]):
     future: set[bytes]
     multifuture: set[bytes]
 
-    def attach(self, env: envtype) -> Evaluable:
+    def attach(self, env: elvtype) -> Evaluable:
         raise NotImplementedError
 
     def index(self, promise: list[bytes]) -> TransformState[Indexed]:
diff --git a/bu4/linking/constructs/llambda.py b/bu4/linking/constructs/llambda.py
index f6eee57..48b2509 100644
--- a/bu4/linking/constructs/llambda.py
+++ b/bu4/linking/constructs/llambda.py
@@ -1,13 +1,13 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.envtype import envtype
 from bu4.evaluation.constructs.eattachable import EAttachable
 from bu4.evaluation.constructs.edelayed import EDelayed
-from bu4.evaluation.constructs.elambda import ELambda
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.indexing.constructs.idelayed import IDelayed
 from bu4.indexing.constructs.ilambda import ILambda
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.linkable.evaluation.ellambda import ELLambda
+from bu4.linkable.evaluation.elvtype import elvtype
 from bu4.linking.constructs.linked import Linked
 from bu4.transform.states.aftertransform import AfterTransform
 from bu4.transform.states.transformfinished import TransformFinished
@@ -29,9 +29,9 @@ class LLambda(Linked):
         self.used = name in value.future
         self.memoize = name in value.multifuture
 
-    def attach(self, env: envtype) -> Evaluable:
+    def attach(self, env: elvtype) -> Evaluable:
         return (
-            ELambda(
+            ELLambda(
                 {name: env[name] for name in self.future} if self.used else env,
                 self.name,
                 self.value
diff --git a/bu4/linking/constructs/lname.py b/bu4/linking/constructs/lname.py
index 292891e..8c29ef7 100644
--- a/bu4/linking/constructs/lname.py
+++ b/bu4/linking/constructs/lname.py
@@ -1,9 +1,9 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.envtype import envtype
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.indexing.constructs.iname import IName
 from bu4.indexing.constructs.indexed import Indexed
+from bu4.linkable.evaluation.elvtype import elvtype
 from bu4.linking.constructs.linked import Linked
 from bu4.transform.states.transformfinished import TransformFinished
 from bu4.transform.states.transformstate import TransformState
@@ -17,7 +17,7 @@ class LName(Linked):
         self.future = {name}
         self.multifuture = set()
 
-    def attach(self, env: envtype) -> Evaluable:
+    def attach(self, env: elvtype) -> Evaluable:
         return env[self.name]
 
     def index(self, promise: list[bytes]) -> TransformState[Indexed]:
diff --git a/bu4/linking/constructs/lnull.py b/bu4/linking/constructs/lnull.py
index ce17f45..98e934d 100644
--- a/bu4/linking/constructs/lnull.py
+++ b/bu4/linking/constructs/lnull.py
@@ -1,10 +1,10 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.envtype import envtype
 from bu4.evaluation.constructs.enull import ENull
 from bu4.evaluation.constructs.evaluable import Evaluable
 from bu4.indexing.constructs.indexed import Indexed
 from bu4.indexing.constructs.inull import INull
+from bu4.linkable.evaluation.elvtype import elvtype
 from bu4.linking.constructs.linked import Linked
 from bu4.transform.states.transformfinished import TransformFinished
 from bu4.transform.states.transformstate import TransformState
@@ -17,7 +17,7 @@ class LNull(Linked):
         self.future = set()
         self.multifuture = set()
 
-    def attach(self, env: envtype) -> Evaluable:
+    def attach(self, env: elvtype) -> Evaluable:
         return ENull()
 
     def index(self, promise: list[bytes]) -> TransformState[Indexed]:
diff --git a/bu4/linking/evaluable_from_parsed.py b/bu4/linking/evaluable_from_parsed.py
index 49b7421..2689454 100644
--- a/bu4/linking/evaluable_from_parsed.py
+++ b/bu4/linking/evaluable_from_parsed.py
@@ -1,13 +1,13 @@
 #  Copyright (c) PARRRATE T&V 2021. All rights reserved.
 
-from bu4.evaluation.av.envtype import envtype
 from bu4.evaluation.constructs.eattachable import EAttachable
 from bu4.linkable.constructs.parsed import Parsed
+from bu4.linkable.evaluation.elvtype import elvtype
 from bu4.transform.transform import transform
 
 __all__ = ('evaluable_from_parsed',)
 
 
-def evaluable_from_parsed(env: envtype, parsed: Parsed):
+def evaluable_from_parsed(env: elvtype, parsed: Parsed):
     linked = transform(parsed.link(set(env)))
     return EAttachable(env, linked)
diff --git a/bu4/tracing/trace.py b/bu4/tracing/trace.py
index 7da6fbb..cd48eeb 100644
--- a/bu4/tracing/trace.py
+++ b/bu4/tracing/trace.py
@@ -4,10 +4,10 @@ from bu4.combinatory.lic import EIC
 from bu4.combinatory.lkc import EKC
 from bu4.combinatory.lsc import ESC, ESC1, ESC2
 from bu4.evaluation.constructs.edelayed import EDelayed
-from bu4.evaluation.constructs.eilambda import EILambda
-from bu4.evaluation.constructs.elambda import ELambda
 from bu4.evaluation.constructs.evalue import EValue
 from bu4.evaluation.sync import sync
+from bu4.indexing.evaluation.eilambda import EILambda
+from bu4.linkable.evaluation.ellambda import ELLambda
 from bu4.tracing.probe import ProbeA
 
 __all__ = ('trace', 'probe_index_reset',)
@@ -19,7 +19,7 @@ def trace(lambda_: EValue):
     global _probe_index
     size = 0
     while True:
-        if not isinstance(lambda_, (ELambda, EILambda, EIC, EKC, ESC, ESC1, ESC2, EDelayed)):
+        if not isinstance(lambda_, (ELLambda, EILambda, EIC, EKC, ESC, ESC1, ESC2, EDelayed)):
             return size, lambda_
         lambda_ = sync(lambda_.call(ProbeA(_probe_index)))
         _probe_index += 1