SWAP_EXISTS_CONV : conv
- SYNOPSIS
-
Interchanges the order of two existentially quantified variables.
- DESCRIBE
-
When applied to a term argument of the form ?x y. P, the conversion
SWAP_EXISTS_CONV returns the theorem:
|- (?x y. P) = (?y x. P)
- FAILURE
-
SWAP_EXISTS_CONV fails if applied to a term that is not of the form
?x y. P.
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