NOT_FORALL_CONV : conv
- SYNOPSIS
-
Moves negation inwards through a universal quantification.
- DESCRIBE
-
When applied to a term of the form ~(!x.P), the conversion
NOT_FORALL_CONV returns the theorem:
|- ~(!x.P) = ?x.~P
It is irrelevant whether x occurs free in P.
- FAILURE
-
Fails if applied to a term not of the form ~(!x.P).
- SEEALSO EXISTS_NOT_CONV,
FORALL_NOT_CONV,
NOT_EXISTS_CONV
HOL Kananaskis 0