im.bldald

Theorem.

Arguments:

x (sv), phi (pr), psi (pr), chi (pr),

Hypotheses:

(phito(psitochi))
(x bound in phi)

Assertions:

(phito(forallxpsitoforallxchi))

Proof:

Hyp Ref Line Expr
Hypo1(phito(psitochi))
2(x bound in phi)
2df-Bvp3(phitoforallxphi)
12im.bldal4(forallxphito(forallxpsitoforallxchi))
3, 4syl5(phito(forallxpsitoforallxchi))