Theorem ad6antr

Deduction adding 6 conjuncts to antecedent. (Contributed by Mario Carneiro, 4-Jan-2017.) (Proof shortened by Wolf Lammen, 5-Apr-2022.)

Hypothesis
ad2ant.1
\( \vdash \varphi \rightarrow \psi \)
Conclusion
\( \vdash \varphi \wedge \chi \wedge \theta \wedge \tau \wedge \eta \wedge \zeta \wedge \sigma \rightarrow \psi \)
Proof
ad2ant.1
adantr _
ad5antr _