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Theorem syl331anc 1398
Description: Syllogism combined with contraction. (Contributed by NM, 11-Mar-2012.)
Hypotheses
Ref Expression
syl3anc.1 (𝜑𝜓)
syl3anc.2 (𝜑𝜒)
syl3anc.3 (𝜑𝜃)
syl3Xanc.4 (𝜑𝜏)
syl23anc.5 (𝜑𝜂)
syl33anc.6 (𝜑𝜁)
syl133anc.7 (𝜑𝜎)
syl331anc.8 (((𝜓𝜒𝜃) ∧ (𝜏𝜂𝜁) ∧ 𝜎) → 𝜌)
Assertion
Ref Expression
syl331anc (𝜑𝜌)

Proof of Theorem syl331anc
StepHypRef Expression
1 syl3anc.1 . 2 (𝜑𝜓)
2 syl3anc.2 . 2 (𝜑𝜒)
3 syl3anc.3 . 2 (𝜑𝜃)
4 syl3Xanc.4 . . 3 (𝜑𝜏)
5 syl23anc.5 . . 3 (𝜑𝜂)
6 syl33anc.6 . . 3 (𝜑𝜁)
74, 5, 63jca 1129 . 2 (𝜑 → (𝜏𝜂𝜁))
8 syl133anc.7 . 2 (𝜑𝜎)
9 syl331anc.8 . 2 (((𝜓𝜒𝜃) ∧ (𝜏𝜂𝜁) ∧ 𝜎) → 𝜌)
101, 2, 3, 7, 8, 9syl311anc 1387 1 (𝜑𝜌)
Colors of variables: wff setvar class
Syntax hints:  wi 4  w3a 1087
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 1089
This theorem is referenced by:  syl332anc  1404  syl333anc  1405  qredeu  16618  brbtwn2  28988  3atlem4  39946  3atlem6  39948  llnexchb2  40329  osumcllem9N  40424  cdlemd4  40661  cdleme26fALTN  40822  cdleme26f  40823  cdleme36m  40921  cdlemg17b  41122  cdlemg17h  41128  cdlemk38  41375  cdlemk53b  41416  cdlemkyyN  41422  cdlemk43N  41423
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