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Theorem syl32anc 1279
Description: Syllogism combined with contraction. (Contributed by NM, 11-Mar-2012.)
Hypotheses
Ref Expression
sylXanc.1 (𝜑𝜓)
sylXanc.2 (𝜑𝜒)
sylXanc.3 (𝜑𝜃)
sylXanc.4 (𝜑𝜏)
sylXanc.5 (𝜑𝜂)
syl32anc.6 (((𝜓𝜒𝜃) ∧ (𝜏𝜂)) → 𝜁)
Assertion
Ref Expression
syl32anc (𝜑𝜁)

Proof of Theorem syl32anc
StepHypRef Expression
1 sylXanc.1 . 2 (𝜑𝜓)
2 sylXanc.2 . 2 (𝜑𝜒)
3 sylXanc.3 . 2 (𝜑𝜃)
4 sylXanc.4 . . 3 (𝜑𝜏)
5 sylXanc.5 . . 3 (𝜑𝜂)
64, 5jca 306 . 2 (𝜑 → (𝜏𝜂))
7 syl32anc.6 . 2 (((𝜓𝜒𝜃) ∧ (𝜏𝜂)) → 𝜁)
81, 2, 3, 6, 7syl31anc 1274 1 (𝜑𝜁)
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104  w3a 1002
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108
This theorem depends on definitions:  df-bi 117  df-3an 1004
This theorem is referenced by:  ioom  10497  modifeq2int  10625  modaddmodup  10626  seq3f1olemqsum  10752  seq3f1o  10756  exple1  10834  leexp2rd  10942  nn0ltexp2  10948  facubnd  10984  permnn  11010  dfabsmax  11749  expcnvre  12035  dvdsadd2b  12372  dvdsmulgcd  12567  sqgcd  12571  bezoutr  12574  cncongr2  12647  pw2dvds  12709  hashgcdlem  12781  modprm0  12798  modprmn0modprm0  12800  2idlcpblrng  14508  tgioo  15249  mpodvdsmulf1o  15685  perfectlem2  15695  lgssq  15740  lgssq2  15741  gausslemma2dlem7  15768  lgsquad2lem1  15781  lgsquad2lem2  15782
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