Theorem 3exp2

Exportation from right triple conjunction. (Contributed by NM, 26-Oct-2006.)

Hypothesis
3exp2.1
\( \vdash \varphi \wedge (\psi \wedge \chi \wedge \theta) \rightarrow \tau \)
Conclusion
\( \vdash \varphi \rightarrow \psi \rightarrow \chi \rightarrow \theta \rightarrow \tau \)
Proof
3exp2.1
ex _
3expd _