Theorem adantlllr

Description: Deduction adding a conjunct to antecedent. (Contributed by Glauco Siliprandi, 11-Dec-2019)

	Ref	Expression
Hypothesis	adantlllr.1	|- ( ( ( ( ph /\ ps ) /\ ch ) /\ th ) -> ta )
Assertion	adantlllr	|- ( ( ( ( ( ph /\ et ) /\ ps ) /\ ch ) /\ th ) -> ta )

Proof

Step	Hyp	Ref	Expression
1		adantlllr.1	|- ( ( ( ( ph /\ ps ) /\ ch ) /\ th ) -> ta )
2	1	adantl3r	|- ( ( ( ( ( ph /\ et ) /\ ps ) /\ ch ) /\ th ) -> ta )