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fix typo in comment defining macros (#6306)

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The existing comment describes macros as "formulas of the form
`(forall X (= (f X) T[X]))` ... where `T[X]` does not contain `X`". This is
incorrect; of course the macros' definitions are allowed to be in terms of
the macros' arguments. The comment should say "...does not contain `f`" because
macros can't be recursive.
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J Sailor 2022-08-28 20:49:52 -04:00 • committed by GitHub
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src/ast/macros/macro_manager.h
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@ -29,7 +29,7 @@ Revision History:
\brief Macros are universally quantified formulas of the form:
(forall X (= (f X) T[X]))
(forall X (iff (f X) T[X]))
where T[X] does not contain X.
where T[X] does not contain f.
This class is responsible for storing macros and expanding them.
It has support for backtracking and tagging declarations in an expression as forbidded for being macros.