Theorem
3imp1
Importation to left triple conjunction. (Contributed by NM, 24-Feb-2005.)
Hypothesis
3imp1.1
\( \vdash \varphi \rightarrow \psi \rightarrow \chi \rightarrow \theta \rightarrow \tau \)
Conclusion
\( \vdash (\varphi \wedge \psi \wedge \chi) \wedge \theta \rightarrow \tau \)
Proof
3imp1.1
3imp
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imp
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