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Theorem mul31d 9812
Description: Commutative/associative law. (Contributed by Mario Carneiro, 27-May-2016.)
Hypotheses
Ref Expression
muld.1
addcomd.2
addcand.3
Assertion
Ref Expression
mul31d

Proof of Theorem mul31d
StepHypRef Expression
1 muld.1 . 2
2 addcomd.2 . 2
3 addcand.3 . 2
4 mul31 9769 . 2
51, 2, 3, 4syl3anc 1228 1
Colors of variables: wff setvar class
Syntax hints:  ->wi 4  =wceq 1395  e.wcel 1818  (class class class)co 6296   cc 9511   cmul 9518
This theorem is referenced by:  lawcoslem1  23147
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1618  ax-4 1631  ax-5 1704  ax-6 1747  ax-7 1790  ax-10 1837  ax-11 1842  ax-12 1854  ax-13 1999  ax-ext 2435  ax-mulcl 9575  ax-mulcom 9577  ax-mulass 9579
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 975  df-tru 1398  df-ex 1613  df-nf 1617  df-sb 1740  df-clab 2443  df-cleq 2449  df-clel 2452  df-nfc 2607  df-rex 2813  df-rab 2816  df-v 3111  df-dif 3478  df-un 3480  df-in 3482  df-ss 3489  df-nul 3785  df-if 3942  df-sn 4030  df-pr 4032  df-op 4036  df-uni 4250  df-br 4453  df-iota 5556  df-fv 5601  df-ov 6299
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