Theorem ad5ant234

Deduction adding conjuncts to antecedent. (Contributed by Alan Sare, 17-Oct-2017.) (Proof shortened by Wolf Lammen, 14-Apr-2022.)

Hypothesis
ad5ant.1
\( \vdash \varphi \wedge \psi \wedge \chi \rightarrow \theta \)
Conclusion
\( \vdash \tau \wedge \varphi \wedge \psi \wedge \chi \wedge \eta \rightarrow \theta \)
Proof
ad5ant.1
ad4ant234 _
adantr _