ONCE_REWRITE_RULE : thm list -> thm -> thm

- SYNOPSIS
- Rewrites a theorem, including built-in tautologies in the list of rewrites.
- DESCRIPTION
- ONCE_REWRITE_RULE searches for matching subterms and applies rewrites once at each subterm, in the manner specified for ONCE_DEPTH_CONV. The rewrites which are used are obtained from the given list of theorems and the set of tautologies stored in basic_rewrites. See GEN_REWRITE_RULE for the general method of using theorems to rewrite an object theorem.
- FAILURE CONDITIONS
- ONCE_REWRITE_RULE does not fail; it does not diverge.
- USES
- ONCE_REWRITE_RULE can be used to rewrite a theorem when recursive rewriting is not desired.
- SEE ALSO
- ASM_REWRITE_RULE, GEN_REWRITE_RULE, ONCE_ASM_REWRITE_RULE, PURE_ONCE_REWRITE_RULE, PURE_REWRITE_RULE, REWRITE_RULE.