ad2an<<

Theorem.

Arguments:

phi (pr), psi (pr), chi (pr), theta (pr),

Hypotheses:

(phitopsi)

Assertions:

(((phiwedgechi)wedgetheta)topsi)

Proof:

Hyp Ref Line Expr
Hypo1(phitopsi)
1adan>2((phiwedgechi)topsi)
2adan>3(((phiwedgechi)wedgetheta)topsi)