ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  syl122anc GIF version

Theorem syl122anc 1282
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 1278 1 (𝜑𝜁)
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104  w3a 1004
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 1006
This theorem is referenced by:  divdiv32apd  8996  divcanap5d  8997  divcanap7d  8999  divdivap1d  9002  divdivap2d  9003  seq3coll  11107  cau3lem  11679  summodclem2a  11947  prodmodclem2a  12142  prmind2  12697  divnumden  12773  pceulem  12872  pcqmul  12881  pcqdiv  12885  pcexp  12887  pcaddlem  12917  pcbc  12929  abladdsub4  13906  ablpnpcan  13912  lmodvs1  14336  blss2ps  15136  blss2  15137  blssps  15157  blss  15158  xmeter  15166  lgsdi  15772
  Copyright terms: Public domain W3C validator