rp-1<

Theorem.

Arguments:

a (st), b (coll), c (st),

Hypotheses:

(ceqa)
(ainb)

Assertions:

(cinb)

Proof:

Hyp Ref Line Expr
Hypo1(ceqa)
2(ainb)
2eqt<a3((ceqa)to(cinb))
1, 3ax-mp4(cinb)