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| Description: Identity law for multiplication. |
| Ref | Expression |
|---|---|
| addid1.1 |
|
| Ref | Expression |
|---|---|
| mulid1 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | addid1.1 |
. 2
| |
| 2 | ax1id 5265 |
. 2
| |
| 3 | 1, 2 | ax-mp 7 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: mulid2 5316 lt01 5663 muleqaddt 5679 divrec 5710 recrec 5735 rec11i 5743 3t3e9 5981 halfpm6th 5989 nneo 6154 1expt 6529 mulexpt 6539 recexpt 6540 expubndt 6553 sqreci 6564 nnlesq 6606 nnesq 6607 nn0opthlem1 6609 sqrlem2 6619 sqr1 6661 i4 6679 rei 6774 imi 6775 cji 6777 facp1t 6888 faclbnd4lem1 6900 bcpasc2 6920 binomlem6 7024 binom 7025 fnsmnt 7178 0.999... 7198 erelem2 7279 ef1tllem 7340 eirrlem1 7347 eflt 7364 efcnlem1 7376 efcnlem2 7377 efivalt 7406 sin01bndlem1 7426 sin01bndlem3 7428 cos2bnd 7434 vcnegneg 8157 nvnncan 8247 ipid 8325 ipdirilem 8447 ubthlem8 8495 cos2pi 8639 circcltOLD 8691 avril1 8739 hvnegdi 8884 hisubcom 8925 projlem4 9144 honegnegt 9689 lnophmlem2 9898 nmopadjlem 9978 nmopcoadj 9990 unierr 9993 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 961 ax-gen 962 ax-8 963 ax-9 964 ax-10 965 ax-11 966 ax-12 967 ax-13 968 ax-14 969 ax-17 970 ax-4 972 ax-5o 974 ax-6o 977 ax-9o 1122 ax-10o 1139 ax-16 1209 ax-11o 1217 ax-ext 1458 ax-rep 2689 ax-sep 2699 ax-nul 2706 ax-pow 2738 ax-pr 2775 ax-un 2862 ax-inf2 4608 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 775 df-3an 776 df-ex 980 df-sb 1171 df-eu 1381 df-mo 1382 df-clab 1463 df-cleq 1468 df-clel 1471 df-ne 1585 df-ral 1647 df-rex 1648 df-reu 1649 df-rab 1650 df-v 1809 df-sbc 1939 df-csb 1999 df-dif 2046 df-un 2047 df-in 2048 df-ss 2050 df-pss 2052 df-nul 2278 df-if 2359 df-pw 2399 df-sn 2409 df-pr 2410 df-tp 2412 df-op 2413 df-uni 2500 df-int 2530 df-iun 2564 df-br 2616 df-opab 2663 df-tr 2677 df-eprel 2828 df-id 2831 df-po 2836 df-so 2846 df-fr 2913 df-we 2930 df-ord 2947 df-on 2948 df-lim 2949 df-suc 2950 df-om 3128 df-xp 3180 df-rel 3181 df-cnv 3182 df-co 3183 df-dm 3184 df-rn 3185 df-res 3186 df-ima 3187 df-fun 3188 df-fn 3189 df-f 3190 df-fv 3194 df-rdg 3927 df-opr 3960 df-oprab 3961 df-1st 4072 df-2nd 4073 df-1o 4126 df-oadd 4128 df-omul 4129 df-er 4254 df-ec 4256 df-qs 4259 df-ni 4983 df-pli 4984 df-mi 4985 df-lti 4986 df-plpq 5018 df-mpq 5019 df-enq 5020 df-nq 5021 df-plq 5022 df-mq 5023 df-rq 5024 df-ltq 5025 df-1q 5026 df-np 5069 df-1p 5070 df-plp 5071 df-mp 5072 df-ltp 5073 df-plpr 5147 df-mpr 5148 df-enr 5149 df-nr 5150 df-plr 5151 df-mr 5152 df-0r 5154 df-1r 5155 df-m1r 5156 df-c 5223 df-1 5225 df-mul 5229 |