Theorem syl231anc 1346

Description: Syllogism combined with contraction. (Contributed by NM, 11-Mar-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)
syl231anc.7	⊢ (((𝜓 ∧ 𝜒) ∧ (𝜃 ∧ 𝜏 ∧ 𝜂) ∧ 𝜁) → 𝜎)

Assertion

Ref	Expression
syl231anc	⊢ (𝜑 → 𝜎)

Proof of Theorem syl231anc

Step	Hyp	Ref	Expression
1		syl12anc.1	. . 3 ⊢ (𝜑 → 𝜓)
2		syl12anc.2	. . 3 ⊢ (𝜑 → 𝜒)
3	1, 2	jca 554	. 2 ⊢ (𝜑 → (𝜓 ∧ 𝜒))
4		syl12anc.3	. 2 ⊢ (𝜑 → 𝜃)
5		syl22anc.4	. 2 ⊢ (𝜑 → 𝜏)
6		syl23anc.5	. 2 ⊢ (𝜑 → 𝜂)
7		syl33anc.6	. 2 ⊢ (𝜑 → 𝜁)
8		syl231anc.7	. 2 ⊢ (((𝜓 ∧ 𝜒) ∧ (𝜃 ∧ 𝜏 ∧ 𝜂) ∧ 𝜁) → 𝜎)
9	3, 4, 5, 6, 7, 8	syl131anc 1339	1 ⊢ (𝜑 → 𝜎)

Syntax hints:   → wi 4   ∧ wa 384   ∧ w3a 1037

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 386  df-3an 1039

This theorem is referenced by:  syl232anc  1353  isosctr  24551  axeuclid  25843  dalawlem3  35159  dalawlem6  35162  cdlemd7  35491  cdleme18c  35580  cdlemi  36108  cdlemk7  36136  cdlemk11  36137  cdlemk7u  36158  cdlemk11u  36159  cdlemk19xlem  36230  cdlemk55u1  36253  cdlemk56  36259