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Theorem ablsub32 19338
Description: Swap the second and third terms in a double group subtraction. (Contributed by NM, 7-Apr-2015.)
Hypotheses
Ref Expression
ablnncan.b 𝐵 = (Base‘𝐺)
ablnncan.m = (-g𝐺)
ablnncan.g (𝜑𝐺 ∈ Abel)
ablnncan.x (𝜑𝑋𝐵)
ablnncan.y (𝜑𝑌𝐵)
ablsub32.z (𝜑𝑍𝐵)
Assertion
Ref Expression
ablsub32 (𝜑 → ((𝑋 𝑌) 𝑍) = ((𝑋 𝑍) 𝑌))

Proof of Theorem ablsub32
StepHypRef Expression
1 ablnncan.g . . . 4 (𝜑𝐺 ∈ Abel)
2 ablnncan.y . . . 4 (𝜑𝑌𝐵)
3 ablsub32.z . . . 4 (𝜑𝑍𝐵)
4 ablnncan.b . . . . 5 𝐵 = (Base‘𝐺)
5 eqid 2738 . . . . 5 (+g𝐺) = (+g𝐺)
64, 5ablcom 19319 . . . 4 ((𝐺 ∈ Abel ∧ 𝑌𝐵𝑍𝐵) → (𝑌(+g𝐺)𝑍) = (𝑍(+g𝐺)𝑌))
71, 2, 3, 6syl3anc 1369 . . 3 (𝜑 → (𝑌(+g𝐺)𝑍) = (𝑍(+g𝐺)𝑌))
87oveq2d 7271 . 2 (𝜑 → (𝑋 (𝑌(+g𝐺)𝑍)) = (𝑋 (𝑍(+g𝐺)𝑌)))
9 ablnncan.m . . 3 = (-g𝐺)
10 ablnncan.x . . 3 (𝜑𝑋𝐵)
114, 5, 9, 1, 10, 2, 3ablsubsub4 19335 . 2 (𝜑 → ((𝑋 𝑌) 𝑍) = (𝑋 (𝑌(+g𝐺)𝑍)))
124, 5, 9, 1, 10, 3, 2ablsubsub4 19335 . 2 (𝜑 → ((𝑋 𝑍) 𝑌) = (𝑋 (𝑍(+g𝐺)𝑌)))
138, 11, 123eqtr4d 2788 1 (𝜑 → ((𝑋 𝑌) 𝑍) = ((𝑋 𝑍) 𝑌))
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1539  wcel 2108  cfv 6418  (class class class)co 7255  Basecbs 16840  +gcplusg 16888  -gcsg 18494  Abelcabl 19302
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-ral 3068  df-rex 3069  df-reu 3070  df-rmo 3071  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-iun 4923  df-br 5071  df-opab 5133  df-mpt 5154  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-fv 6426  df-riota 7212  df-ov 7258  df-oprab 7259  df-mpo 7260  df-1st 7804  df-2nd 7805  df-0g 17069  df-mgm 18241  df-sgrp 18290  df-mnd 18301  df-grp 18495  df-minusg 18496  df-sbg 18497  df-cmn 19303  df-abl 19304
This theorem is referenced by:  ablnnncan1  19340  baerlem5alem2  39652
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