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David Swasey
coqstdpp
Commits
6c34b059
Commit
6c34b059
authored
Feb 22, 2018
by
Robbert Krebbers
Browse files
Put `TCIf` in `Prop`.
parent
28e72e3c
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theories/base.v
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theories/base.v
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6c34b059
...
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@@ 67,7 +67,7 @@ as [TCOr (TCAnd P Q) R]: the latter will backtrack to [R] if it fails to
establish [R], i.e. does not have the behavior of a conditional. Furthermore,
note that [TCOr (TCAnd P Q) (TCAnd (TCNot P) R)] would not work; we generally
would not be able to prove the negation of [P]. *)
Inductive
TCIf
(
P
Q
R
:
Prop
)
:
=
Inductive
TCIf
(
P
Q
R
:
Prop
)
:
Prop
:
=

TCIf_true
:
P
→
Q
→
TCIf
P
Q
R

TCIf_false
:
R
→
TCIf
P
Q
R
.
Existing
Class
TCIf
.
...
...
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