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| Description: Identity law for multiplication. Note: see ax1id 5262 for commuted version. |
| Ref | Expression |
|---|---|
| mulid2t |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax1cn 5249 |
. . 3
| |
| 2 | axmulcom 5256 |
. . 3
| |
| 3 | 1, 2 | mpan 694 |
. 2
|
| 4 | ax1id 5262 |
. 2
| |
| 5 | 3, 4 | eqtrd 1504 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: muladd11t 5402 mulm1t 5451 divcan5t 5745 divadddivt 5748 divdivdivt 5749 recdivt 5754 conjmult 5761 recp1lt1 5857 nndivtrt 5915 gtndivt 6148 expp1t 6514 expordit 6539 recant 6850 faclbnd 6890 faclbnd4lem4 6896 facavgt 6900 fsumconst 6984 binomlem1 7012 binomlem2 7013 binomlem3 7014 binomlem4 7015 binom1p 7019 climmullem4 7067 georeclim 7183 efaddlem5 7292 efaddlem6 7293 abspef01tlub 7344 demoivre 7434 ablmul 8083 mulid 8084 cnring 8114 cnvc 8154 nvm1 8244 nvpi 8246 nvmtri 8251 ipval2 8304 ipasslem1 8434 ipasslem4 8437 sinhalfpip 8635 sinhalfpim 8636 coshalfpip 8637 coshalfpim 8638 circgrpOLD 8677 bcs2t 8988 pjthlem7 9163 lnfnadd 9910 |
| 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-1p 5067 df-plp 5068 df-mp 5069 df-ltp 5070 df-plpr 5144 df-mpr 5145 df-enr 5146 df-nr 5147 df-plr 5148 df-mr 5149 df-0r 5151 df-1r 5152 df-m1r 5153 df-c 5220 df-1 5222 df-r 5224 df-mul 5226 |