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PFORALL_NOT_CONV                                           (PairRules)
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PFORALL_NOT_CONV : conv

KEYWORDS
conversion, quantifier, universal, negation.

LIBRARY
pair

SYNOPSIS
Moves a paired universal quantification inwards through a negation.

DESCRIBE
When applied to a term of the form {!p. ~t}, the conversion {PFORALL_NOT_CONV}
returns the theorem:

   |- (!p. ~t) = ~(?p. t)




FAILURE
Fails if applied to a term not of the form {!p. ~t}.

SEEALSO
Conv.FORALL_NOT_CONV, PairRules.PEXISTS_NOT_CONV,
PairRules.NOT_PEXISTS_CONV, PairRules.NOT_PFORALL_CONV.

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