Theorem exp32

An exportation inference. (Contributed by NM, 26-Apr-1994.)

Hypothesis
exp32.1
\( \vdash \varphi \wedge (\psi \wedge \chi) \rightarrow \theta \)
Conclusion
\( \vdash \varphi \rightarrow \psi \rightarrow \chi \rightarrow \theta \)
Proof
exp32.1
ex _
expd _