Theorem syl312anc 1393

Description: Syllogism combined with contraction. (Contributed by NM, 11-Jul-2012.)

Hypotheses

Ref	Expression
syl3anc.1	⊢ (𝜑 → 𝜓)
syl3anc.2	⊢ (𝜑 → 𝜒)
syl3anc.3	⊢ (𝜑 → 𝜃)
syl3Xanc.4	⊢ (𝜑 → 𝜏)
syl23anc.5	⊢ (𝜑 → 𝜂)
syl33anc.6	⊢ (𝜑 → 𝜁)
syl312anc.7	⊢ (((𝜓 ∧ 𝜒 ∧ 𝜃) ∧ 𝜏 ∧ (𝜂 ∧ 𝜁)) → 𝜎)

Assertion

Ref	Expression
syl312anc	⊢ (𝜑 → 𝜎)

Proof of Theorem syl312anc

Step	Hyp	Ref	Expression
1		syl3anc.1	. 2 ⊢ (𝜑 → 𝜓)
2		syl3anc.2	. 2 ⊢ (𝜑 → 𝜒)
3		syl3anc.3	. 2 ⊢ (𝜑 → 𝜃)
4		syl3Xanc.4	. 2 ⊢ (𝜑 → 𝜏)
5		syl23anc.5	. . 3 ⊢ (𝜑 → 𝜂)
6		syl33anc.6	. . 3 ⊢ (𝜑 → 𝜁)
7	5, 6	jca 511	. 2 ⊢ (𝜑 → (𝜂 ∧ 𝜁))
8		syl312anc.7	. 2 ⊢ (((𝜓 ∧ 𝜒 ∧ 𝜃) ∧ 𝜏 ∧ (𝜂 ∧ 𝜁)) → 𝜎)
9	1, 2, 3, 4, 7, 8	syl311anc 1386	1 ⊢ (𝜑 → 𝜎)

Syntax hints:   → wi 4   ∧ wa 395   ∧ w3a 1086

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8

This theorem depends on definitions:  df-bi 207  df-an 396  df-3an 1088

This theorem is referenced by:  pythagtriplem19  16761  cdleme27cl  40622  cdlemefs27cl  40669  cdleme32fvcl  40696  cdlemg16ALTN  40914  cdlemg27a  40948  cdlemg31c  40955  cdlemg39  40972  cdlemk11ta  41185  cdlemk19ylem  41186  cdlemk11tc  41201  cdlemk45  41203  dihmeetlem12N  41574  dihjatc  41673  flt4lem5c  42893  flt4lem5d  42894  flt4lem5e  42895