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Theorem cmn145236 33118
Description: Rearrange terms in a commutative monoid sum. Lemma for rlocaddval 33352. (Contributed by Thierry Arnoux, 4-May-2025.)
Hypotheses
Ref Expression
cmn135246.1 𝐵 = (Base‘𝐺)
cmn135246.2 + = (+g𝐺)
cmn135246.3 (𝜑𝐺 ∈ CMnd)
cmn135246.5 (𝜑𝑋𝐵)
cmn135246.4 (𝜑𝑌𝐵)
cmn135246.6 (𝜑𝑍𝐵)
cmn135246.7 (𝜑𝑈𝐵)
cmn135246.8 (𝜑𝑉𝐵)
cmn135246.9 (𝜑𝑊𝐵)
Assertion
Ref Expression
cmn145236 (𝜑 → ((𝑋 + 𝑌) + ((𝑍 + 𝑈) + (𝑉 + 𝑊))) = ((𝑋 + (𝑈 + 𝑉)) + (𝑌 + (𝑍 + 𝑊))))

Proof of Theorem cmn145236
StepHypRef Expression
1 cmn135246.3 . . . . . 6 (𝜑𝐺 ∈ CMnd)
2 cmn135246.6 . . . . . 6 (𝜑𝑍𝐵)
3 cmn135246.7 . . . . . 6 (𝜑𝑈𝐵)
4 cmn135246.1 . . . . . . 7 𝐵 = (Base‘𝐺)
5 cmn135246.2 . . . . . . 7 + = (+g𝐺)
64, 5cmncom 19729 . . . . . 6 ((𝐺 ∈ CMnd ∧ 𝑍𝐵𝑈𝐵) → (𝑍 + 𝑈) = (𝑈 + 𝑍))
71, 2, 3, 6syl3anc 1373 . . . . 5 (𝜑 → (𝑍 + 𝑈) = (𝑈 + 𝑍))
87oveq1d 7373 . . . 4 (𝜑 → ((𝑍 + 𝑈) + (𝑉 + 𝑊)) = ((𝑈 + 𝑍) + (𝑉 + 𝑊)))
9 cmn135246.8 . . . . 5 (𝜑𝑉𝐵)
10 cmn135246.9 . . . . 5 (𝜑𝑊𝐵)
114, 5, 1, 3, 2, 9, 10cmn4d 33116 . . . 4 (𝜑 → ((𝑈 + 𝑍) + (𝑉 + 𝑊)) = ((𝑈 + 𝑉) + (𝑍 + 𝑊)))
128, 11eqtrd 2771 . . 3 (𝜑 → ((𝑍 + 𝑈) + (𝑉 + 𝑊)) = ((𝑈 + 𝑉) + (𝑍 + 𝑊)))
1312oveq2d 7374 . 2 (𝜑 → ((𝑋 + 𝑌) + ((𝑍 + 𝑈) + (𝑉 + 𝑊))) = ((𝑋 + 𝑌) + ((𝑈 + 𝑉) + (𝑍 + 𝑊))))
14 cmn135246.5 . . 3 (𝜑𝑋𝐵)
151cmnmndd 19735 . . . 4 (𝜑𝐺 ∈ Mnd)
164, 5mndcl 18669 . . . 4 ((𝐺 ∈ Mnd ∧ 𝑈𝐵𝑉𝐵) → (𝑈 + 𝑉) ∈ 𝐵)
1715, 3, 9, 16syl3anc 1373 . . 3 (𝜑 → (𝑈 + 𝑉) ∈ 𝐵)
18 cmn135246.4 . . 3 (𝜑𝑌𝐵)
194, 5mndcl 18669 . . . 4 ((𝐺 ∈ Mnd ∧ 𝑍𝐵𝑊𝐵) → (𝑍 + 𝑊) ∈ 𝐵)
2015, 2, 10, 19syl3anc 1373 . . 3 (𝜑 → (𝑍 + 𝑊) ∈ 𝐵)
214, 5, 1, 14, 17, 18, 20cmn4d 33116 . 2 (𝜑 → ((𝑋 + (𝑈 + 𝑉)) + (𝑌 + (𝑍 + 𝑊))) = ((𝑋 + 𝑌) + ((𝑈 + 𝑉) + (𝑍 + 𝑊))))
2213, 21eqtr4d 2774 1 (𝜑 → ((𝑋 + 𝑌) + ((𝑍 + 𝑈) + (𝑉 + 𝑊))) = ((𝑋 + (𝑈 + 𝑉)) + (𝑌 + (𝑍 + 𝑊))))
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1541  wcel 2113  cfv 6492  (class class class)co 7358  Basecbs 17138  +gcplusg 17179  Mndcmnd 18661  CMndccmn 19711
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-12 2184  ax-ext 2708  ax-nul 5251
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-sb 2068  df-clab 2715  df-cleq 2728  df-clel 2811  df-ne 2933  df-ral 3052  df-rex 3061  df-rab 3400  df-v 3442  df-sbc 3741  df-dif 3904  df-un 3906  df-ss 3918  df-nul 4286  df-if 4480  df-sn 4581  df-pr 4583  df-op 4587  df-uni 4864  df-br 5099  df-iota 6448  df-fv 6500  df-ov 7361  df-mgm 18567  df-sgrp 18646  df-mnd 18662  df-cmn 19713
This theorem is referenced by:  rlocaddval  33352  rlocmulval  33353
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