ANTE_CONJ_CONVConv.ANTE_CONJ_CONV : conv
Eliminates a conjunctive antecedent in favour of implication.
When applied to a term of the form (t1 /\ t2) ==> t,
the conversion ANTE_CONJ_CONV returns the theorem:
|- (t1 /\ t2 ==> t) = (t1 ==> t2 ==> t)
Fails if applied to a term not of the form
"(t1 /\ t2) ==> t".
Somewhat ad-hoc, but can be used (with CONV_TAC) to
transform a goal of the form ?- (P /\ Q) ==> R into the
subgoal ?- P ==> (Q ==> R), so that only the
antecedent P is moved into the assumptions by
DISCH_TAC.