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Related theorems GIF version |
| Description: Commutative law for multiplication. |
| Ref | Expression |
|---|---|
| axi.1 | ⊢ A ∈ ℂ |
| axi.2 | ⊢ B ∈ ℂ |
| Ref | Expression |
|---|---|
| mulcom | ⊢ (A · B) = (B · A) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | axi.1 | . 2 ⊢ A ∈ ℂ | |
| 2 | axi.2 | . 2 ⊢ B ∈ ℂ | |
| 3 | axmulcom 4071 | . 2 ⊢ ((A ∈ ℂ ∧ B ∈ ℂ) → (A · B) = (B · A)) | |
| 4 | 1, 2, 3 | mp2an 520 | 1 ⊢ (A · B) = (B · A) |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1091 ∈ wcel 1092 (class class class)co 3001 ℂcc 4026 · cmulc 4032 |
| This theorem is referenced by: mulid2 4115 mul12 4178 muladd 4181 subdir 4183 mulzer2 4186 mulneg1 4190 mulneg2 4191 mul2neg 4192 divcan1 4225 divrec 4236 div23 4244 divcan4 4248 divcan4z 4250 divmul13 4267 recgt0i 4385 ltmul2 4395 lemul1 4397 times2 4491 crmult 4530 binom 4712 discrlem1 4713 sqrlem10 4740 sqrlem11 4741 sqrlem16 4746 cjre 4811 cjmulrcl 4821 abscj 4844 sqabsadd 4847 hvmulcom 5021 normlem3 5065 bcseq 5073 bcs 5101 h1de2 5458 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-un 1076 ax-pow 1077 ax-reg 1078 ax-inf 1079 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-3or 582 df-3an 583 df-ex 679 df-sb 853 df-eu 1009 df-mo 1010 df-clab 1093 df-cleq 1097 df-clel 1099 df-ne 1192 df-ral 1205 df-rex 1206 df-reu 1207 df-rab 1208 df-v 1349 df-sbc 1441 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-pss 1494 df-nul 1708 df-if 1777 df-pw 1799 df-sn 1811 df-pr 1812 df-tp 1814 df-op 1815 df-uni 1920 df-int 1966 df-iun 1996 df-tr 2042 df-br 2063 df-opab 2098 df-eprel 2122 df-id 2125 df-po 2128 df-so 2138 df-fr 2169 df-we 2186 df-ord 2202 df-on 2203 df-lim 2204 df-suc 2205 df-om 2373 df-xp 2424 df-rel 2425 df-cnv 2426 df-co 2427 df-dm 2428 df-rn 2429 df-res 2430 df-ima 2431 df-fun 2432 df-fn 2433 df-f 2434 df-f1 2435 df-fv 2438 df-rdg 2970 df-opr 3003 df-oprab 3004 df-1o 3104 df-oadd 3106 df-omul 3107 df-er 3200 df-ec 3202 df-qs 3205 df-ni 3794 df-pli 3795 df-mi 3796 df-lti 3797 df-plpq 3829 df-mpq 3830 df-enq 3831 df-nq 3832 df-plq 3833 df-mq 3834 df-rq 3835 df-ltq 3836 df-1q 3837 df-np 3880 df-plp 3882 df-mp 3883 df-ltp 3884 df-plpr 3958 df-mpr 3959 df-enr 3960 df-nr 3961 df-plr 3962 df-mr 3963 df-c 4034 df-mul 4040 |