EQUIV-EQ-EXPD : IRULEDEF

EQUIV-EQ-EXPD is an intermediate rule definition.
*(D1) H !A(O)
(D2) H !`(INSTANTIATE-TOP-EQUALITY A(O)) Equiv-eq: D1
Transformation: (pp D1 ss) ==> (pp D2 ss)

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EQUIV-EQ-EXPD : MEXPR

EQUIV-EQ-EXPD is a top-level command.
Rule to expand the outermost equality using the Leibniz definition.
The command format for EQUIV-EQ-EXPD is:

 <n>EQUIV-EQ-EXPD   D1   D2    A INSTANTIATE-TOP-EQUALITY   D1-HYPS    D2-HYPS 
"LINE" "LINE" "GWFF" "GWFF" "LINELIST" "LINELIST"


The arguments have the following meaning:
D1 : Line in = form
D2 : Line in Leibniz form
A : Wff with = symbols
INSTANTIATE-TOP-EQUALITY : Expanded wff
D1-HYPS : Hypotheses
D2-HYPS : Hypotheses

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EQUIV-EQ-EXPD : SRULE

EQUIV-EQ-EXPD is an inference rule.
Its priority is 5

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