let a, b, c be Real; :: thesis: ( 0 < b & c < a * b implies c / b < a )
assume that
A1: b > 0 and
A2: a * b > c ; :: thesis: c / b < a
(a * b) / b > c / b by A1, A2, Lm26;
hence c / b < a by A1, XCMPLX_1:89; :: thesis: verum