---------------------------------------------------------------------- LEFT_IMP_FORALL_CONV (Conv) ---------------------------------------------------------------------- LEFT_IMP_FORALL_CONV : conv SYNOPSIS Moves a universal quantification of the antecedent outwards through an implication. KEYWORDS conversion, quantifier, universal, implication. DESCRIBE When applied to a term of the form {(!x.P) ==> Q}, the conversion {LEFT_IMP_FORALL_CONV} returns the theorem: |- (!x.P) ==> Q = (?x'. P[x'/x] ==> Q) where {x'} is a primed variant of {x} that does not appear free in the input term. FAILURE Fails if applied to a term not of the form {(!x.P) ==> Q}. SEEALSO Conv.EXISTS_IMP_CONV, Conv.RIGHT_IMP_FORALL_CONV. ----------------------------------------------------------------------