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Related theorems GIF version |
| Description: Addition of complex numbers is commutative. Axiom 9 of 25 for real and complex numbers, derived from ZF set theory. |
| Ref | Expression |
|---|---|
| axaddcom | ⊢ ((A ∈ ℂ ⋀ B ∈ ℂ) → (A + B) = (B + A)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dfcnqs 5242 | . 2 ⊢ ℂ = ((R × R) / ◡E) | |
| 2 | addcnsrec 5243 | . 2 ⊢ (((x ∈ R ⋀ y ∈ R) ⋀ (z ∈ R ⋀ w ∈ R)) → ([〈x, y〉]◡E + [〈z, w〉]◡E) = [〈(x +R z), (y +R w)〉]◡E) | |
| 3 | addcnsrec 5243 | . 2 ⊢ (((z ∈ R ⋀ w ∈ R) ⋀ (x ∈ R ⋀ y ∈ R)) → ([〈z, w〉]◡E + [〈x, y〉]◡E) = [〈(z +R x), (w +R y)〉]◡E) | |
| 4 | visset 1809 | . . 3 ⊢ x ∈ V | |
| 5 | visset 1809 | . . 3 ⊢ z ∈ V | |
| 6 | 4, 5 | addcomsr 5176 | . 2 ⊢ (x +R z) = (z +R x) |
| 7 | visset 1809 | . . 3 ⊢ y ∈ V | |
| 8 | visset 1809 | . . 3 ⊢ w ∈ V | |
| 9 | 7, 8 | addcomsr 5176 | . 2 ⊢ (y +R w) = (w +R y) |
| 10 | 1, 2, 3, 6, 9 | ecoprcom 4309 | 1 ⊢ ((A ∈ ℂ ⋀ B ∈ ℂ) → (A + B) = (B + A)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 3 ⋀ wa 223 = wceq 954 ∈ wcel 956 Ecep 2825 ◡ccnv 3164 (class class class)co 3954 Rcnr 4973 +R cplr 4977 ℂcc 5212 + caddc 5217 |
| This theorem is referenced by: addcomt 5285 addcom 5302 addid2t 5309 add12t 5316 add23t 5317 add42t 5319 cnegextlem1 5325 cnegextlem3 5327 addcan 5331 addcan2t 5333 subsub23t 5356 addsubt 5364 addsub12t 5366 pncan2t 5378 negsubdi2t 5438 sub23t 5445 nnncan1t 5447 sub4t 5456 pnpcan2t 5459 ppncant 5461 ltadd2t 5606 leadd2t 5608 ltsubadd2t 5610 lesubadd2t 5612 ltaddsub2t 5614 leaddsub2t 5616 addgtge0t 5630 ltaddpos2t 5633 addge02t 5654 conjmult 5761 recp1lt1 5857 recrecltt 5858 nnleltp1t 5909 nn0nnaddclt 6081 zaddclt 6120 zneo 6155 zneoOLD 6156 shftval2t 6292 shftval4t 6294 fzshftralt 6462 seqzval2t 6493 subsqt 6581 bernneq2 6592 rimul 6683 imret 6718 fsumrev 6975 fsumshft 6977 bcxmas 7022 climshft2 7051 climaddc2 7063 efaddlem14 7301 ef1tllem 7331 cosnegt 7393 addcost 7409 sincossqt 7411 cos2tt 7413 absefit 7432 demoivre 7434 nn0ennn 7447 ioo2bl 7864 cnaddabl 8078 addinv 8080 ipval2 8304 hhph 8984 golem1 10136 stcltrlem1 10141 cdj3lem3b 10301 truni1 10422 2wsms 10510 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 960 ax-gen 961 ax-8 962 ax-9 963 ax-10 964 ax-11 965 ax-12 966 ax-13 967 ax-14 968 ax-17 969 ax-4 971 ax-5o 973 ax-6o 976 ax-9o 1121 ax-10o 1138 ax-16 1208 ax-11o 1216 ax-ext 1457 ax-rep 2688 ax-sep 2698 ax-nul 2705 ax-pow 2737 ax-pr 2774 ax-un 2861 ax-inf2 4605 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 775 df-3an 776 df-ex 979 df-sb 1170 df-eu 1380 df-mo 1381 df-clab 1462 df-cleq 1467 df-clel 1470 df-ne 1584 df-ral 1646 df-rex 1647 df-reu 1648 df-rab 1649 df-v 1808 df-sbc 1938 df-csb 1998 df-dif 2045 df-un 2046 df-in 2047 df-ss 2049 df-pss 2051 df-nul 2277 df-if 2358 df-pw 2398 df-sn 2408 df-pr 2409 df-tp 2411 df-op 2412 df-uni 2499 df-int 2529 df-iun 2563 df-br 2615 df-opab 2662 df-tr 2676 df-eprel 2827 df-id 2830 df-po 2835 df-so 2845 df-fr 2912 df-we 2929 df-ord 2946 df-on 2947 df-lim 2948 df-suc 2949 df-om 3127 df-xp 3179 df-rel 3180 df-cnv 3181 df-co 3182 df-dm 3183 df-rn 3184 df-res 3185 df-ima 3186 df-fun 3187 df-fn 3188 df-f 3189 df-fv 3193 df-rdg 3923 df-opr 3956 df-oprab 3957 df-1st 4069 df-2nd 4070 df-1o 4123 df-oadd 4125 df-omul 4126 df-er 4251 df-ec 4253 df-qs 4256 df-ni 4980 df-pli 4981 df-mi 4982 df-lti 4983 df-plpq 5015 df-mpq 5016 df-enq 5017 df-nq 5018 df-plq 5019 df-mq 5020 df-rq 5021 df-ltq 5022 df-1q 5023 df-np 5066 df-plp 5068 df-ltp 5070 df-plpr 5144 df-enr 5146 df-nr 5147 df-plr 5148 df-c 5220 df-plus 5225 |