im.bldexd

Theorem.

Arguments:

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

Hypotheses:

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

Assertions:

(phito(existsxpsitoexistsxchi))

Proof:

Hyp Ref Line Expr
Hypo1(phito(psitochi))
2(x bound in phi)
1, 2imgen>i3(phitoforallx(psitochi))
im.bldext4(forallx(psitochi)to(existsxpsitoexistsxchi))
3, 4syl5(phito(existsxpsitoexistsxchi))