Theorem syl113anc 1245

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

Hypotheses

Ref	Expression
sylXanc.1	⊢ (𝜑 → 𝜓)
sylXanc.2	⊢ (𝜑 → 𝜒)
sylXanc.3	⊢ (𝜑 → 𝜃)
sylXanc.4	⊢ (𝜑 → 𝜏)
sylXanc.5	⊢ (𝜑 → 𝜂)
syl113anc.6	⊢ ((𝜓 ∧ 𝜒 ∧ (𝜃 ∧ 𝜏 ∧ 𝜂)) → 𝜁)

Assertion

Ref	Expression
syl113anc	⊢ (𝜑 → 𝜁)

Proof of Theorem syl113anc

Step	Hyp	Ref	Expression
1		sylXanc.1	. 2 ⊢ (𝜑 → 𝜓)
2		sylXanc.2	. 2 ⊢ (𝜑 → 𝜒)
3		sylXanc.3	. . 3 ⊢ (𝜑 → 𝜃)
4		sylXanc.4	. . 3 ⊢ (𝜑 → 𝜏)
5		sylXanc.5	. . 3 ⊢ (𝜑 → 𝜂)
6	3, 4, 5	3jca 1172	. 2 ⊢ (𝜑 → (𝜃 ∧ 𝜏 ∧ 𝜂))
7		syl113anc.6	. 2 ⊢ ((𝜓 ∧ 𝜒 ∧ (𝜃 ∧ 𝜏 ∧ 𝜂)) → 𝜁)
8	1, 2, 6, 7	syl3anc 1233	1 ⊢ (𝜑 → 𝜁)

Syntax hints:   → wi 4   ∧ w3a 973

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107

This theorem depends on definitions:  df-bi 116  df-3an 975

This theorem is referenced by:  syl123anc  1250  syl213anc  1252  divalglemnn  11877  pythagtriplem18  12235