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Theorem ablsub4 19329
Description: Commutative/associative subtraction law for Abelian groups. (Contributed by NM, 31-Mar-2014.)
Hypotheses
Ref Expression
ablsubadd.b 𝐵 = (Base‘𝐺)
ablsubadd.p + = (+g𝐺)
ablsubadd.m = (-g𝐺)
Assertion
Ref Expression
ablsub4 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → ((𝑋 + 𝑌) (𝑍 + 𝑊)) = ((𝑋 𝑍) + (𝑌 𝑊)))

Proof of Theorem ablsub4
StepHypRef Expression
1 ablgrp 19306 . . . . 5 (𝐺 ∈ Abel → 𝐺 ∈ Grp)
213ad2ant1 1131 . . . 4 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → 𝐺 ∈ Grp)
3 simp2l 1197 . . . 4 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → 𝑋𝐵)
4 simp2r 1198 . . . 4 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → 𝑌𝐵)
5 ablsubadd.b . . . . 5 𝐵 = (Base‘𝐺)
6 ablsubadd.p . . . . 5 + = (+g𝐺)
75, 6grpcl 18500 . . . 4 ((𝐺 ∈ Grp ∧ 𝑋𝐵𝑌𝐵) → (𝑋 + 𝑌) ∈ 𝐵)
82, 3, 4, 7syl3anc 1369 . . 3 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → (𝑋 + 𝑌) ∈ 𝐵)
9 simp3l 1199 . . . 4 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → 𝑍𝐵)
10 simp3r 1200 . . . 4 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → 𝑊𝐵)
115, 6grpcl 18500 . . . 4 ((𝐺 ∈ Grp ∧ 𝑍𝐵𝑊𝐵) → (𝑍 + 𝑊) ∈ 𝐵)
122, 9, 10, 11syl3anc 1369 . . 3 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → (𝑍 + 𝑊) ∈ 𝐵)
13 eqid 2738 . . . 4 (invg𝐺) = (invg𝐺)
14 ablsubadd.m . . . 4 = (-g𝐺)
155, 6, 13, 14grpsubval 18540 . . 3 (((𝑋 + 𝑌) ∈ 𝐵 ∧ (𝑍 + 𝑊) ∈ 𝐵) → ((𝑋 + 𝑌) (𝑍 + 𝑊)) = ((𝑋 + 𝑌) + ((invg𝐺)‘(𝑍 + 𝑊))))
168, 12, 15syl2anc 583 . 2 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → ((𝑋 + 𝑌) (𝑍 + 𝑊)) = ((𝑋 + 𝑌) + ((invg𝐺)‘(𝑍 + 𝑊))))
17 ablcmn 19308 . . . . 5 (𝐺 ∈ Abel → 𝐺 ∈ CMnd)
18173ad2ant1 1131 . . . 4 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → 𝐺 ∈ CMnd)
19 simp2 1135 . . . 4 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → (𝑋𝐵𝑌𝐵))
205, 13grpinvcl 18542 . . . . 5 ((𝐺 ∈ Grp ∧ 𝑍𝐵) → ((invg𝐺)‘𝑍) ∈ 𝐵)
212, 9, 20syl2anc 583 . . . 4 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → ((invg𝐺)‘𝑍) ∈ 𝐵)
225, 13grpinvcl 18542 . . . . 5 ((𝐺 ∈ Grp ∧ 𝑊𝐵) → ((invg𝐺)‘𝑊) ∈ 𝐵)
232, 10, 22syl2anc 583 . . . 4 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → ((invg𝐺)‘𝑊) ∈ 𝐵)
245, 6cmn4 19321 . . . 4 ((𝐺 ∈ CMnd ∧ (𝑋𝐵𝑌𝐵) ∧ (((invg𝐺)‘𝑍) ∈ 𝐵 ∧ ((invg𝐺)‘𝑊) ∈ 𝐵)) → ((𝑋 + 𝑌) + (((invg𝐺)‘𝑍) + ((invg𝐺)‘𝑊))) = ((𝑋 + ((invg𝐺)‘𝑍)) + (𝑌 + ((invg𝐺)‘𝑊))))
2518, 19, 21, 23, 24syl112anc 1372 . . 3 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → ((𝑋 + 𝑌) + (((invg𝐺)‘𝑍) + ((invg𝐺)‘𝑊))) = ((𝑋 + ((invg𝐺)‘𝑍)) + (𝑌 + ((invg𝐺)‘𝑊))))
26 simp1 1134 . . . . 5 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → 𝐺 ∈ Abel)
275, 6, 13ablinvadd 19326 . . . . 5 ((𝐺 ∈ Abel ∧ 𝑍𝐵𝑊𝐵) → ((invg𝐺)‘(𝑍 + 𝑊)) = (((invg𝐺)‘𝑍) + ((invg𝐺)‘𝑊)))
2826, 9, 10, 27syl3anc 1369 . . . 4 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → ((invg𝐺)‘(𝑍 + 𝑊)) = (((invg𝐺)‘𝑍) + ((invg𝐺)‘𝑊)))
2928oveq2d 7271 . . 3 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → ((𝑋 + 𝑌) + ((invg𝐺)‘(𝑍 + 𝑊))) = ((𝑋 + 𝑌) + (((invg𝐺)‘𝑍) + ((invg𝐺)‘𝑊))))
305, 6, 13, 14grpsubval 18540 . . . . 5 ((𝑋𝐵𝑍𝐵) → (𝑋 𝑍) = (𝑋 + ((invg𝐺)‘𝑍)))
313, 9, 30syl2anc 583 . . . 4 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → (𝑋 𝑍) = (𝑋 + ((invg𝐺)‘𝑍)))
325, 6, 13, 14grpsubval 18540 . . . . 5 ((𝑌𝐵𝑊𝐵) → (𝑌 𝑊) = (𝑌 + ((invg𝐺)‘𝑊)))
334, 10, 32syl2anc 583 . . . 4 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → (𝑌 𝑊) = (𝑌 + ((invg𝐺)‘𝑊)))
3431, 33oveq12d 7273 . . 3 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → ((𝑋 𝑍) + (𝑌 𝑊)) = ((𝑋 + ((invg𝐺)‘𝑍)) + (𝑌 + ((invg𝐺)‘𝑊))))
3525, 29, 343eqtr4d 2788 . 2 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → ((𝑋 + 𝑌) + ((invg𝐺)‘(𝑍 + 𝑊))) = ((𝑋 𝑍) + (𝑌 𝑊)))
3616, 35eqtrd 2778 1 ((𝐺 ∈ Abel ∧ (𝑋𝐵𝑌𝐵) ∧ (𝑍𝐵𝑊𝐵)) → ((𝑋 + 𝑌) (𝑍 + 𝑊)) = ((𝑋 𝑍) + (𝑌 𝑊)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  w3a 1085   = wceq 1539  wcel 2108  cfv 6418  (class class class)co 7255  Basecbs 16840  +gcplusg 16888  Grpcgrp 18492  invgcminusg 18493  -gcsg 18494  CMndccmn 19301  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:  abladdsub4  19330  ablpnpcan  19336  mdetuni0  21678  minveclem2  24495  baerlem3lem1  39648
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