Theorem an31s

Swap two conjuncts in antecedent. (Contributed by NM, 31-May-2006.)

Hypothesis
an32s.1
\( \vdash \varphi \wedge \psi \wedge \chi \rightarrow \theta \)
Conclusion
\( \vdash \chi \wedge \psi \wedge \varphi \rightarrow \theta \)
Proof
an32s.1
exp31 _
com13 _
imp31 _