Theorem
simp133
Simplification of conjunction. (Contributed by NM, 9-Mar-2012.)
Conclusion
\( \vdash (\theta \wedge \tau \wedge (\varphi \wedge \psi \wedge \chi)) \wedge \eta \wedge \zeta \rightarrow \chi \)
Proof
simp33
3ad2ant1
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