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Theorem syl122anc 1280
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)
syl122anc.6 ((𝜓 ∧ (𝜒𝜃) ∧ (𝜏𝜂)) → 𝜁)
Assertion
Ref Expression
syl122anc (𝜑𝜁)

Proof of Theorem syl122anc
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 syl122anc.6 . 2 ((𝜓 ∧ (𝜒𝜃) ∧ (𝜏𝜂)) → 𝜁)
81, 2, 3, 6, 7syl121anc 1276 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:  divdiv32apd  8989  divcanap5d  8990  divcanap7d  8992  divdivap1d  8995  divdivap2d  8996  seq3coll  11099  cau3lem  11668  summodclem2a  11935  prodmodclem2a  12130  prmind2  12685  divnumden  12761  pceulem  12860  pcqmul  12869  pcqdiv  12873  pcexp  12875  pcaddlem  12905  pcbc  12917  abladdsub4  13894  ablpnpcan  13900  lmodvs1  14323  blss2ps  15123  blss2  15124  blssps  15144  blss  15145  xmeter  15153  lgsdi  15759
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