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Theorem ablnnncan 18051
 Description: Cancellation law for group subtraction. (nnncan 10195 analog.) (Contributed by NM, 29-Feb-2008.) (Revised by AV, 27-Aug-2021.)
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
ablnnncan (𝜑 → ((𝑋 (𝑌 𝑍)) 𝑍) = (𝑋 𝑌))

Proof of Theorem ablnnncan
StepHypRef Expression
1 ablnncan.b . . 3 𝐵 = (Base‘𝐺)
2 eqid 2610 . . 3 (+g𝐺) = (+g𝐺)
3 ablnncan.m . . 3 = (-g𝐺)
4 ablnncan.g . . 3 (𝜑𝐺 ∈ Abel)
5 ablnncan.x . . 3 (𝜑𝑋𝐵)
6 ablgrp 18021 . . . . 5 (𝐺 ∈ Abel → 𝐺 ∈ Grp)
74, 6syl 17 . . . 4 (𝜑𝐺 ∈ Grp)
8 ablnncan.y . . . 4 (𝜑𝑌𝐵)
9 ablsub32.z . . . 4 (𝜑𝑍𝐵)
101, 3grpsubcl 17318 . . . 4 ((𝐺 ∈ Grp ∧ 𝑌𝐵𝑍𝐵) → (𝑌 𝑍) ∈ 𝐵)
117, 8, 9, 10syl3anc 1318 . . 3 (𝜑 → (𝑌 𝑍) ∈ 𝐵)
121, 2, 3, 4, 5, 11, 9ablsubsub4 18047 . 2 (𝜑 → ((𝑋 (𝑌 𝑍)) 𝑍) = (𝑋 ((𝑌 𝑍)(+g𝐺)𝑍)))
131, 2ablcom 18033 . . . . 5 ((𝐺 ∈ Abel ∧ (𝑌 𝑍) ∈ 𝐵𝑍𝐵) → ((𝑌 𝑍)(+g𝐺)𝑍) = (𝑍(+g𝐺)(𝑌 𝑍)))
144, 11, 9, 13syl3anc 1318 . . . 4 (𝜑 → ((𝑌 𝑍)(+g𝐺)𝑍) = (𝑍(+g𝐺)(𝑌 𝑍)))
151, 2, 3ablpncan3 18045 . . . . 5 ((𝐺 ∈ Abel ∧ (𝑍𝐵𝑌𝐵)) → (𝑍(+g𝐺)(𝑌 𝑍)) = 𝑌)
164, 9, 8, 15syl12anc 1316 . . . 4 (𝜑 → (𝑍(+g𝐺)(𝑌 𝑍)) = 𝑌)
1714, 16eqtrd 2644 . . 3 (𝜑 → ((𝑌 𝑍)(+g𝐺)𝑍) = 𝑌)
1817oveq2d 6565 . 2 (𝜑 → (𝑋 ((𝑌 𝑍)(+g𝐺)𝑍)) = (𝑋 𝑌))
1912, 18eqtrd 2644 1 (𝜑 → ((𝑋 (𝑌 𝑍)) 𝑍) = (𝑋 𝑌))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   = wceq 1475   ∈ wcel 1977  ‘cfv 5804  (class class class)co 6549  Basecbs 15695  +gcplusg 15768  Grpcgrp 17245  -gcsg 17247  Abelcabl 18017 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-rep 4699  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847 This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-ral 2901  df-rex 2902  df-reu 2903  df-rmo 2904  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-op 4132  df-uni 4373  df-iun 4457  df-br 4584  df-opab 4644  df-mpt 4645  df-id 4953  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-1st 7059  df-2nd 7060  df-0g 15925  df-mgm 17065  df-sgrp 17107  df-mnd 17118  df-grp 17248  df-minusg 17249  df-sbg 17250  df-cmn 18018  df-abl 18019 This theorem is referenced by: (None)
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