| max(ofh0[m, fh]) < fd, fd ∈ ofh0[m, fh], ∀ fd. ¬(max(ofh0) < fd ∧ fd ∈ ofh0) ⊦ |
⊦ max(ofh[fd, fh]) = (fd > max(ofh) ⊃ fd;max(ofh))
(max(ofh0) < m ⊃ m;max(ofh0)) < fd, fd ∈ ofh0[m, fh], ∀ fd0. ¬ max(ofh0) < fd0 ∨ ¬ fd0 ∈ ofh0 ⊦
Used simplifier rules: max-rec: ⊦ max(ofh[fd, fh]) = (fd > max(ofh) ⊃ fd;max(ofh));% ⊦ m > n ↔ n < m; (s)