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Theorem syl33anc 1382
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)
syl33anc.7 (((𝜓𝜒𝜃) ∧ (𝜏𝜂𝜁)) → 𝜎)
Assertion
Ref Expression
syl33anc (𝜑𝜎)

Proof of Theorem syl33anc
StepHypRef Expression
1 syl3anc.1 . . 3 (𝜑𝜓)
2 syl3anc.2 . . 3 (𝜑𝜒)
3 syl3anc.3 . . 3 (𝜑𝜃)
41, 2, 33jca 1125 . 2 (𝜑 → (𝜓𝜒𝜃))
5 syl3Xanc.4 . 2 (𝜑𝜏)
6 syl23anc.5 . 2 (𝜑𝜂)
7 syl33anc.6 . 2 (𝜑𝜁)
8 syl33anc.7 . 2 (((𝜓𝜒𝜃) ∧ (𝜏𝜂𝜁)) → 𝜎)
94, 5, 6, 7, 8syl13anc 1369 1 (𝜑𝜎)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 399  w3a 1084
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 210  df-an 400  df-3an 1086
This theorem is referenced by:  initoeu2lem2  17267  mdetunilem9  21225  mdetuni0  21226  xmetrtri  22962  bl2in  23007  blhalf  23012  blssps  23031  blss  23032  blcld  23112  methaus  23127  metdstri  23456  metdscnlem  23460  metnrmlem3  23466  xlebnum  23570  pmltpclem1  24052  colinearalglem2  26701  axlowdim  26755  ssbnd  35226  totbndbnd  35227  heiborlem6  35254  2atm  36823  lplncvrlvol2  36911  dalem19  36978  paddasslem9  37124  pclclN  37187  pclfinN  37196  pclfinclN  37246  pexmidlem8N  37273  trlval3  37483  cdleme22b  37637  cdlemefr29bpre0N  37702  cdlemefr29clN  37703  cdlemefr32fvaN  37705  cdlemefr32fva1  37706  cdlemg31b0N  37990  cdlemg31b0a  37991  cdlemh  38113  dihmeetlem16N  38618  dihmeetlem18N  38620  dihmeetlem19N  38621  dihmeetlem20N  38622  hoidmvlelem1  43234
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