MAKE-INVERSE-RRULE : MEXPR

MAKE-INVERSE-RRULE is a top-level command.
Make the inverse rewrite rule of an existing
rule.
The command format for MAKE-INVERSE-RRULE is:

 <n>MAKE-INVERSE-RRULE   RULE  NEWNAME 
"RRULE" "SYMBOL"


The arguments have the following meaning:
RULE : Rule to reverse
NEWNAME : Name for new rule

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