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Mirrors > Home > ILE Home > Th. List > axmulcom | GIF version |
Description: Multiplication of complex numbers is commutative. Axiom for real and complex numbers, derived from set theory. This construction-dependent theorem should not be referenced directly, nor should the proven axiom ax-mulcom 7446 be used later. Instead, use mulcom 7471. (Contributed by NM, 31-Aug-1995.) (New usage is discouraged.) |
Ref | Expression |
---|---|
axmulcom | ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 · 𝐵) = (𝐵 · 𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfcnqs 7378 | . 2 ⊢ ℂ = ((R × R) / ◡ E ) | |
2 | mulcnsrec 7380 | . 2 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → ([〈𝑥, 𝑦〉]◡ E · [〈𝑧, 𝑤〉]◡ E ) = [〈((𝑥 ·R 𝑧) +R (-1R ·R (𝑦 ·R 𝑤))), ((𝑦 ·R 𝑧) +R (𝑥 ·R 𝑤))〉]◡ E ) | |
3 | mulcnsrec 7380 | . 2 ⊢ (((𝑧 ∈ R ∧ 𝑤 ∈ R) ∧ (𝑥 ∈ R ∧ 𝑦 ∈ R)) → ([〈𝑧, 𝑤〉]◡ E · [〈𝑥, 𝑦〉]◡ E ) = [〈((𝑧 ·R 𝑥) +R (-1R ·R (𝑤 ·R 𝑦))), ((𝑤 ·R 𝑥) +R (𝑧 ·R 𝑦))〉]◡ E ) | |
4 | simpll 496 | . . . 4 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → 𝑥 ∈ R) | |
5 | simprl 498 | . . . 4 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → 𝑧 ∈ R) | |
6 | mulcomsrg 7303 | . . . 4 ⊢ ((𝑥 ∈ R ∧ 𝑧 ∈ R) → (𝑥 ·R 𝑧) = (𝑧 ·R 𝑥)) | |
7 | 4, 5, 6 | syl2anc 403 | . . 3 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → (𝑥 ·R 𝑧) = (𝑧 ·R 𝑥)) |
8 | simplr 497 | . . . . 5 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → 𝑦 ∈ R) | |
9 | simprr 499 | . . . . 5 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → 𝑤 ∈ R) | |
10 | mulcomsrg 7303 | . . . . 5 ⊢ ((𝑦 ∈ R ∧ 𝑤 ∈ R) → (𝑦 ·R 𝑤) = (𝑤 ·R 𝑦)) | |
11 | 8, 9, 10 | syl2anc 403 | . . . 4 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → (𝑦 ·R 𝑤) = (𝑤 ·R 𝑦)) |
12 | 11 | oveq2d 5668 | . . 3 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → (-1R ·R (𝑦 ·R 𝑤)) = (-1R ·R (𝑤 ·R 𝑦))) |
13 | 7, 12 | oveq12d 5670 | . 2 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → ((𝑥 ·R 𝑧) +R (-1R ·R (𝑦 ·R 𝑤))) = ((𝑧 ·R 𝑥) +R (-1R ·R (𝑤 ·R 𝑦)))) |
14 | mulcomsrg 7303 | . . . . 5 ⊢ ((𝑦 ∈ R ∧ 𝑧 ∈ R) → (𝑦 ·R 𝑧) = (𝑧 ·R 𝑦)) | |
15 | 8, 5, 14 | syl2anc 403 | . . . 4 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → (𝑦 ·R 𝑧) = (𝑧 ·R 𝑦)) |
16 | mulcomsrg 7303 | . . . . 5 ⊢ ((𝑥 ∈ R ∧ 𝑤 ∈ R) → (𝑥 ·R 𝑤) = (𝑤 ·R 𝑥)) | |
17 | 4, 9, 16 | syl2anc 403 | . . . 4 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → (𝑥 ·R 𝑤) = (𝑤 ·R 𝑥)) |
18 | 15, 17 | oveq12d 5670 | . . 3 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → ((𝑦 ·R 𝑧) +R (𝑥 ·R 𝑤)) = ((𝑧 ·R 𝑦) +R (𝑤 ·R 𝑥))) |
19 | mulclsr 7300 | . . . . 5 ⊢ ((𝑧 ∈ R ∧ 𝑦 ∈ R) → (𝑧 ·R 𝑦) ∈ R) | |
20 | 5, 8, 19 | syl2anc 403 | . . . 4 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → (𝑧 ·R 𝑦) ∈ R) |
21 | mulclsr 7300 | . . . . 5 ⊢ ((𝑤 ∈ R ∧ 𝑥 ∈ R) → (𝑤 ·R 𝑥) ∈ R) | |
22 | 9, 4, 21 | syl2anc 403 | . . . 4 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → (𝑤 ·R 𝑥) ∈ R) |
23 | addcomsrg 7301 | . . . 4 ⊢ (((𝑧 ·R 𝑦) ∈ R ∧ (𝑤 ·R 𝑥) ∈ R) → ((𝑧 ·R 𝑦) +R (𝑤 ·R 𝑥)) = ((𝑤 ·R 𝑥) +R (𝑧 ·R 𝑦))) | |
24 | 20, 22, 23 | syl2anc 403 | . . 3 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → ((𝑧 ·R 𝑦) +R (𝑤 ·R 𝑥)) = ((𝑤 ·R 𝑥) +R (𝑧 ·R 𝑦))) |
25 | 18, 24 | eqtrd 2120 | . 2 ⊢ (((𝑥 ∈ R ∧ 𝑦 ∈ R) ∧ (𝑧 ∈ R ∧ 𝑤 ∈ R)) → ((𝑦 ·R 𝑧) +R (𝑥 ·R 𝑤)) = ((𝑤 ·R 𝑥) +R (𝑧 ·R 𝑦))) |
26 | 1, 2, 3, 13, 25 | ecovicom 6400 | 1 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 · 𝐵) = (𝐵 · 𝐴)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 102 = wceq 1289 ∈ wcel 1438 E cep 4114 ◡ccnv 4437 (class class class)co 5652 Rcnr 6856 -1Rcm1r 6859 +R cplr 6860 ·R cmr 6861 ℂcc 7348 · cmul 7355 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-in1 579 ax-in2 580 ax-io 665 ax-5 1381 ax-7 1382 ax-gen 1383 ax-ie1 1427 ax-ie2 1428 ax-8 1440 ax-10 1441 ax-11 1442 ax-i12 1443 ax-bndl 1444 ax-4 1445 ax-13 1449 ax-14 1450 ax-17 1464 ax-i9 1468 ax-ial 1472 ax-i5r 1473 ax-ext 2070 ax-coll 3954 ax-sep 3957 ax-nul 3965 ax-pow 4009 ax-pr 4036 ax-un 4260 ax-setind 4353 ax-iinf 4403 |
This theorem depends on definitions: df-bi 115 df-dc 781 df-3or 925 df-3an 926 df-tru 1292 df-fal 1295 df-nf 1395 df-sb 1693 df-eu 1951 df-mo 1952 df-clab 2075 df-cleq 2081 df-clel 2084 df-nfc 2217 df-ne 2256 df-ral 2364 df-rex 2365 df-reu 2366 df-rab 2368 df-v 2621 df-sbc 2841 df-csb 2934 df-dif 3001 df-un 3003 df-in 3005 df-ss 3012 df-nul 3287 df-pw 3431 df-sn 3452 df-pr 3453 df-op 3455 df-uni 3654 df-int 3689 df-iun 3732 df-br 3846 df-opab 3900 df-mpt 3901 df-tr 3937 df-eprel 4116 df-id 4120 df-po 4123 df-iso 4124 df-iord 4193 df-on 4195 df-suc 4198 df-iom 4406 df-xp 4444 df-rel 4445 df-cnv 4446 df-co 4447 df-dm 4448 df-rn 4449 df-res 4450 df-ima 4451 df-iota 4980 df-fun 5017 df-fn 5018 df-f 5019 df-f1 5020 df-fo 5021 df-f1o 5022 df-fv 5023 df-ov 5655 df-oprab 5656 df-mpt2 5657 df-1st 5911 df-2nd 5912 df-recs 6070 df-irdg 6135 df-1o 6181 df-2o 6182 df-oadd 6185 df-omul 6186 df-er 6292 df-ec 6294 df-qs 6298 df-ni 6863 df-pli 6864 df-mi 6865 df-lti 6866 df-plpq 6903 df-mpq 6904 df-enq 6906 df-nqqs 6907 df-plqqs 6908 df-mqqs 6909 df-1nqqs 6910 df-rq 6911 df-ltnqqs 6912 df-enq0 6983 df-nq0 6984 df-0nq0 6985 df-plq0 6986 df-mq0 6987 df-inp 7025 df-i1p 7026 df-iplp 7027 df-imp 7028 df-enr 7272 df-nr 7273 df-plr 7274 df-mr 7275 df-m1r 7279 df-c 7356 df-mul 7362 |
This theorem is referenced by: rereceu 7424 recriota 7425 |
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