Theorem 3impdir

Importation inference (undistribute conjunction). (Contributed by NM, 20-Aug-1995.)

Hypothesis
3impdir.1
\( \vdash \varphi \wedge \psi \wedge (\chi \wedge \psi) \rightarrow \theta \)
Conclusion
\( \vdash \varphi \wedge \chi \wedge \psi \rightarrow \theta \)
Proof
3impdir.1
anandirs _
3impa _