Theorem syl312anc 1496

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

Hypotheses

Ref	Expression
syl12anc.1	⊢ (𝜑 → 𝜓)
syl12anc.2	⊢ (𝜑 → 𝜒)
syl12anc.3	⊢ (𝜑 → 𝜃)
syl22anc.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		syl12anc.1	. 2 ⊢ (𝜑 → 𝜓)
2		syl12anc.2	. 2 ⊢ (𝜑 → 𝜒)
3		syl12anc.3	. 2 ⊢ (𝜑 → 𝜃)
4		syl22anc.4	. 2 ⊢ (𝜑 → 𝜏)
5		syl23anc.5	. . 3 ⊢ (𝜑 → 𝜂)
6		syl33anc.6	. . 3 ⊢ (𝜑 → 𝜁)
7	5, 6	jca 495	. 2 ⊢ (𝜑 → (𝜂 ∧ 𝜁))
8		syl312anc.7	. 2 ⊢ (((𝜓 ∧ 𝜒 ∧ 𝜃) ∧ 𝜏 ∧ (𝜂 ∧ 𝜁)) → 𝜎)
9	1, 2, 3, 4, 7, 8	syl311anc 1489	1 ⊢ (𝜑 → 𝜎)

Syntax hints:   → wi 4   ∧ wa 382   ∧ w3a 1070

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 197  df-an 383  df-3an 1072

This theorem is referenced by:  pythagtriplem19  15744  cdleme27cl  36168  cdlemefs27cl  36215  cdleme32fvcl  36242  cdlemg16ALTN  36460  cdlemg27a  36494  cdlemg31c  36501  cdlemg39  36518  cdlemk11ta  36731  cdlemk19ylem  36732  cdlemk11tc  36747  cdlemk45  36749  dihmeetlem12N  37121  dihjatc  37220