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Theorem syl223anc 1254
Description: Syllogism combined with contraction. (Contributed by NM, 11-Mar-2012.)
Hypotheses
Ref Expression
sylXanc.1
sylXanc.2
sylXanc.3
sylXanc.4
sylXanc.5
sylXanc.6
sylXanc.7
syl223anc.8
Assertion
Ref Expression
syl223anc

Proof of Theorem syl223anc
StepHypRef Expression
1 sylXanc.1 . 2
2 sylXanc.2 . 2
3 sylXanc.3 . . 3
4 sylXanc.4 . . 3
53, 4jca 532 . 2
6 sylXanc.5 . 2
7 sylXanc.6 . 2
8 sylXanc.7 . 2
9 syl223anc.8 . 2
101, 2, 5, 6, 7, 8, 9syl213anc 1247 1
Colors of variables: wff setvar class
Syntax hints:  ->wi 4  /\wa 369  /\w3a 973
This theorem is referenced by:  cdleme17d1  36014  cdlemednpq  36024  cdleme19d  36032  cdleme20aN  36035  cdleme20c  36037  cdleme20f  36040  cdleme20g  36041  cdleme20j  36044  cdleme20l1  36046  cdleme20l2  36047  cdlemky  36652  cdlemkyyN  36688
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 185  df-an 371  df-3an 975
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