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| Description: 1 is an identity element for multiplication. Axiom 16 of 25 for real and complex numbers, derived from ZF set theory. |
| Ref | Expression |
|---|---|
| ax1id |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-c 5240 |
. 2
| |
| 2 | opreq1 3968 |
. . 3
| |
| 3 | id 59 |
. . 3
| |
| 4 | 2, 3 | eqeq12d 1489 |
. 2
|
| 5 | 1r 5190 |
. . . . . 6
| |
| 6 | 0r 5189 |
. . . . . 6
| |
| 7 | 5, 6 | pm3.2i 285 |
. . . . 5
|
| 8 | mulcnsr 5254 |
. . . . 5
| |
| 9 | 7, 8 | mpan2 696 |
. . . 4
|
| 10 | 00sr 5208 |
. . . . . . . . 9
| |
| 11 | 10 | opreq2d 3976 |
. . . . . . . 8
|
| 12 | m1r 5191 |
. . . . . . . . 9
| |
| 13 | 00sr 5208 |
. . . . . . . . 9
| |
| 14 | 12, 13 | ax-mp 7 |
. . . . . . . 8
|
| 15 | 11, 14 | syl6eq 1523 |
. . . . . . 7
|
| 16 | 15 | opreq2d 3976 |
. . . . . 6
|
| 17 | 1idsr 5207 |
. . . . . . . 8
| |
| 18 | 17 | opreq1d 3975 |
. . . . . . 7
|
| 19 | 0idsr 5206 |
. . . . . . 7
| |
| 20 | 18, 19 | eqtrd 1507 |
. . . . . 6
|
| 21 | 16, 20 | sylan9eqr 1529 |
. . . . 5
|
| 22 | 00sr 5208 |
. . . . . . 7
| |
| 23 | 22 | opreq2d 3976 |
. . . . . 6
|
| 24 | 1idsr 5207 |
. . . . . . . 8
| |
| 25 | 24 | opreq1d 3975 |
. . . . . . 7
|
| 26 | 0idsr 5206 |
. . . . . . 7
| |
| 27 | 25, 26 | eqtrd 1507 |
. . . . . 6
|
| 28 | 23, 27 | sylan9eq 1527 |
. . . . 5
|
| 29 | 21, 28 | opeq12d 2495 |
. . . 4
|
| 30 | 9, 29 | eqtrd 1507 |
. . 3
|
| 31 | df-1 5242 |
. . . 4
| |
| 32 | 31 | opreq2i 3972 |
. . 3
|
| 33 | 30, 32 | syl5eq 1519 |
. 2
|
| 34 | 1, 4, 33 | optocl 3235 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: mulid1t 5311 mulid1 5332 mulid2t 5417 muladd11t 5422 muleqaddt 5700 divadddivt 5784 divdivmult 5795 conjmult 5797 mulgt1t 5845 ltmulgt11t 5846 lemulge11t 5848 nnmulclt 5941 expaddt 6596 expmult 6597 sq01t 6651 bernneq 6652 crrecz 6741 facwordit 6944 faclbnd 6945 faclbnd2 6946 faclbnd4lem3 6950 faclbnd6 6954 facavgt 6955 bcn0t 6963 bcnp11t 6965 binomlem1 7066 binomlem4 7069 fnsmnt 7226 geoser 7234 efexpt 7372 efnn0valt 7373 cos01gt0 7477 abseft 7483 cnring 8162 nmoub3i 8436 ipasslem2 8491 ubthlem10 8538 htthlem6 8625 sinper 8690 cosper 8691 nmopub2tALT 9833 nmfnleub2t 9850 nmcopexlem5 9955 nmcfnexlem5 9984 nmopcoadj 10034 branmfnt 10038 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 962 ax-gen 963 ax-8 964 ax-9 965 ax-10 966 ax-11 967 ax-12 968 ax-13 969 ax-14 970 ax-17 971 ax-4 973 ax-5o 975 ax-6o 978 ax-9o 1123 ax-10o 1140 ax-16 1210 ax-11o 1218 ax-ext 1459 ax-rep 2693 ax-sep 2703 ax-nul 2710 ax-pow 2742 ax-pr 2779 ax-un 2866 ax-inf2 4625 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 776 df-3an 777 df-ex 981 df-sb 1172 df-eu 1382 df-mo 1383 df-clab 1464 df-cleq 1469 df-clel 1472 df-ne 1587 df-ral 1649 df-rex 1650 df-reu 1651 df-rab 1652 df-v 1812 df-sbc 1942 df-csb 2002 df-dif 2049 df-un 2050 df-in 2051 df-ss 2053 df-pss 2055 df-nul 2281 df-if 2362 df-pw 2402 df-sn 2412 df-pr 2413 df-tp 2415 df-op 2416 df-uni 2504 df-int 2534 df-iun 2568 df-br 2620 df-opab 2667 df-tr 2681 df-eprel 2832 df-id 2835 df-po 2840 df-so 2850 df-fr 2917 df-we 2934 df-ord 2951 df-on 2952 df-lim 2953 df-suc 2954 df-om 3132 df-xp 3184 df-rel 3185 df-cnv 3186 df-co 3187 df-dm 3188 df-rn 3189 df-res 3190 df-ima 3191 df-fun 3192 df-fn 3193 df-f 3194 df-fv 3198 df-rdg 3932 df-opr 3965 df-oprab 3966 df-1st 4079 df-2nd 4080 df-1o 4133 df-oadd 4135 df-omul 4136 df-er 4261 df-ec 4263 df-qs 4266 df-ni 5000 df-pli 5001 df-mi 5002 df-lti 5003 df-plpq 5035 df-mpq 5036 df-enq 5037 df-nq 5038 df-plq 5039 df-mq 5040 df-rq 5041 df-ltq 5042 df-1q 5043 df-np 5086 df-1p 5087 df-plp 5088 df-mp 5089 df-ltp 5090 df-plpr 5164 df-mpr 5165 df-enr 5166 df-nr 5167 df-plr 5168 df-mr 5169 df-0r 5171 df-1r 5172 df-m1r 5173 df-c 5240 df-1 5242 df-mul 5246 |