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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 5305 |
. 2
| |
| 2 | opreq1 4026 |
. . 3
| |
| 3 | id 59 |
. . 3
| |
| 4 | 2, 3 | eqeq12d 1536 |
. 2
|
| 5 | 1r 5255 |
. . . . . 6
| |
| 6 | 0r 5254 |
. . . . . 6
| |
| 7 | 5, 6 | pm3.2i 292 |
. . . . 5
|
| 8 | mulcnsr 5319 |
. . . . 5
| |
| 9 | 7, 8 | mpan2 708 |
. . . 4
|
| 10 | 00sr 5273 |
. . . . . . . . 9
| |
| 11 | 10 | opreq2d 4034 |
. . . . . . . 8
|
| 12 | m1r 5256 |
. . . . . . . . 9
| |
| 13 | 00sr 5273 |
. . . . . . . . 9
| |
| 14 | 12, 13 | ax-mp 7 |
. . . . . . . 8
|
| 15 | 11, 14 | syl6eq 1570 |
. . . . . . 7
|
| 16 | 15 | opreq2d 4034 |
. . . . . 6
|
| 17 | 1idsr 5272 |
. . . . . . . 8
| |
| 18 | 17 | opreq1d 4033 |
. . . . . . 7
|
| 19 | 0idsr 5271 |
. . . . . . 7
| |
| 20 | 18, 19 | eqtrd 1554 |
. . . . . 6
|
| 21 | 16, 20 | sylan9eqr 1576 |
. . . . 5
|
| 22 | 00sr 5273 |
. . . . . . 7
| |
| 23 | 22 | opreq2d 4034 |
. . . . . 6
|
| 24 | 1idsr 5272 |
. . . . . . . 8
| |
| 25 | 24 | opreq1d 4033 |
. . . . . . 7
|
| 26 | 0idsr 5271 |
. . . . . . 7
| |
| 27 | 25, 26 | eqtrd 1554 |
. . . . . 6
|
| 28 | 23, 27 | sylan9eq 1574 |
. . . . 5
|
| 29 | 21, 28 | opeq12d 2549 |
. . . 4
|
| 30 | 9, 29 | eqtrd 1554 |
. . 3
|
| 31 | df-1 5307 |
. . . 4
| |
| 32 | 31 | opreq2i 4030 |
. . 3
|
| 33 | 30, 32 | syl5eq 1566 |
. 2
|
| 34 | 1, 4, 33 | optocl 3292 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: mulid1 5376 mulid1i 5397 mulid2 5482 muladd11 5487 muleqadd 5765 divadddiv 5842 divdivmul 5853 conjmul 5855 mulgt1 5903 ltmulgt11 5904 lemulge11 5906 nnmulcl 6001 expadd 6685 expmul 6686 sq01 6740 bernneq 6741 crreczi 6831 facwordi 7034 faclbnd 7035 faclbnd2 7036 faclbnd4lem3 7040 faclbnd6 7044 facavg 7045 bcn0 7053 bcnp11 7055 binomlem1 7156 binomlem4 7159 arisumi 7316 geoseri 7324 efexp 7462 efnn0val 7463 cos01gt0 7569 absef 7575 cnring 8246 nmoub3i 8520 ipasslem2 8575 ubthlem10 8622 htthlem6 8709 sinper 8773 cosper 8774 nmopub2tALT 9916 nmfnleub2 9933 nmcopexlem5 10038 nmcfnexlem5 10067 nmopcoadji 10117 branmfn 10121 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1003 ax-gen 1004 ax-8 1005 ax-9 1006 ax-10 1007 ax-11 1008 ax-12 1009 ax-13 1010 ax-14 1011 ax-17 1012 ax-4 1014 ax-5o 1016 ax-6o 1019 ax-9o 1164 ax-10o 1182 ax-16 1252 ax-11o 1260 ax-ext 1504 ax-rep 2748 ax-sep 2758 ax-nul 2765 ax-pow 2798 ax-pr 2835 ax-un 2922 ax-inf2 4687 |
| This theorem depends on definitions: df-bi 154 df-or 231 df-an 232 df-3or 788 df-3an 789 df-ex 1022 df-sb 1214 df-eu 1424 df-mo 1425 df-clab 1510 df-cleq 1515 df-clel 1518 df-ne 1634 df-ral 1696 df-rex 1697 df-reu 1698 df-rab 1699 df-v 1859 df-sbc 1989 df-csb 2052 df-dif 2100 df-un 2101 df-in 2102 df-ss 2104 df-pss 2106 df-nul 2332 df-if 2414 df-pw 2454 df-sn 2464 df-pr 2465 df-tp 2467 df-op 2468 df-uni 2558 df-int 2588 df-iun 2622 df-br 2675 df-opab 2722 df-tr 2736 df-eprel 2888 df-id 2891 df-po 2896 df-so 2906 df-fr 2974 df-we 2991 df-ord 3008 df-on 3009 df-lim 3010 df-suc 3011 df-om 3189 df-xp 3241 df-rel 3242 df-cnv 3243 df-co 3244 df-dm 3245 df-rn 3246 df-res 3247 df-ima 3248 df-fun 3249 df-fn 3250 df-f 3251 df-fv 3255 df-rdg 3990 df-opr 4023 df-oprab 4024 df-1st 4137 df-2nd 4138 df-1o 4191 df-oadd 4193 df-omul 4194 df-er 4319 df-ec 4321 df-qs 4324 df-ni 5065 df-pli 5066 df-mi 5067 df-lti 5068 df-plpq 5100 df-mpq 5101 df-enq 5102 df-nq 5103 df-plq 5104 df-mq 5105 df-rq 5106 df-ltq 5107 df-1q 5108 df-np 5151 df-1p 5152 df-plp 5153 df-mp 5154 df-ltp 5155 df-plpr 5229 df-mpr 5230 df-enr 5231 df-nr 5232 df-plr 5233 df-mr 5234 df-0r 5236 df-1r 5237 df-m1r 5238 df-c 5305 df-1 5307 df-mul 5311 |