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Mirrors > Home > MPE Home > Th. List > cnfld1 | Structured version Visualization version GIF version |
Description: One is the unit element of the field of complex numbers. (Contributed by Stefan O'Rear, 27-Nov-2014.) |
Ref | Expression |
---|---|
cnfld1 | ⊢ 1 = (1r‘ℂfld) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-1cn 10594 | . . . 4 ⊢ 1 ∈ ℂ | |
2 | mulid2 10639 | . . . . . 6 ⊢ (𝑥 ∈ ℂ → (1 · 𝑥) = 𝑥) | |
3 | mulid1 10638 | . . . . . 6 ⊢ (𝑥 ∈ ℂ → (𝑥 · 1) = 𝑥) | |
4 | 2, 3 | jca 514 | . . . . 5 ⊢ (𝑥 ∈ ℂ → ((1 · 𝑥) = 𝑥 ∧ (𝑥 · 1) = 𝑥)) |
5 | 4 | rgen 3148 | . . . 4 ⊢ ∀𝑥 ∈ ℂ ((1 · 𝑥) = 𝑥 ∧ (𝑥 · 1) = 𝑥) |
6 | 1, 5 | pm3.2i 473 | . . 3 ⊢ (1 ∈ ℂ ∧ ∀𝑥 ∈ ℂ ((1 · 𝑥) = 𝑥 ∧ (𝑥 · 1) = 𝑥)) |
7 | cnring 20566 | . . . 4 ⊢ ℂfld ∈ Ring | |
8 | cnfldbas 20548 | . . . . 5 ⊢ ℂ = (Base‘ℂfld) | |
9 | cnfldmul 20550 | . . . . 5 ⊢ · = (.r‘ℂfld) | |
10 | eqid 2821 | . . . . 5 ⊢ (1r‘ℂfld) = (1r‘ℂfld) | |
11 | 8, 9, 10 | isringid 19322 | . . . 4 ⊢ (ℂfld ∈ Ring → ((1 ∈ ℂ ∧ ∀𝑥 ∈ ℂ ((1 · 𝑥) = 𝑥 ∧ (𝑥 · 1) = 𝑥)) ↔ (1r‘ℂfld) = 1)) |
12 | 7, 11 | ax-mp 5 | . . 3 ⊢ ((1 ∈ ℂ ∧ ∀𝑥 ∈ ℂ ((1 · 𝑥) = 𝑥 ∧ (𝑥 · 1) = 𝑥)) ↔ (1r‘ℂfld) = 1) |
13 | 6, 12 | mpbi 232 | . 2 ⊢ (1r‘ℂfld) = 1 |
14 | 13 | eqcomi 2830 | 1 ⊢ 1 = (1r‘ℂfld) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 208 ∧ wa 398 = wceq 1533 ∈ wcel 2110 ∀wral 3138 ‘cfv 6354 (class class class)co 7155 ℂcc 10534 1c1 10537 · cmul 10541 1rcur 19250 Ringcrg 19296 ℂfldccnfld 20544 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5202 ax-nul 5209 ax-pow 5265 ax-pr 5329 ax-un 7460 ax-cnex 10592 ax-resscn 10593 ax-1cn 10594 ax-icn 10595 ax-addcl 10596 ax-addrcl 10597 ax-mulcl 10598 ax-mulrcl 10599 ax-mulcom 10600 ax-addass 10601 ax-mulass 10602 ax-distr 10603 ax-i2m1 10604 ax-1ne0 10605 ax-1rid 10606 ax-rnegex 10607 ax-rrecex 10608 ax-cnre 10609 ax-pre-lttri 10610 ax-pre-lttrn 10611 ax-pre-ltadd 10612 ax-pre-mulgt0 10613 ax-addf 10615 ax-mulf 10616 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-pss 3953 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4567 df-pr 4569 df-tp 4571 df-op 4573 df-uni 4838 df-int 4876 df-iun 4920 df-br 5066 df-opab 5128 df-mpt 5146 df-tr 5172 df-id 5459 df-eprel 5464 df-po 5473 df-so 5474 df-fr 5513 df-we 5515 df-xp 5560 df-rel 5561 df-cnv 5562 df-co 5563 df-dm 5564 df-rn 5565 df-res 5566 df-ima 5567 df-pred 6147 df-ord 6193 df-on 6194 df-lim 6195 df-suc 6196 df-iota 6313 df-fun 6356 df-fn 6357 df-f 6358 df-f1 6359 df-fo 6360 df-f1o 6361 df-fv 6362 df-riota 7113 df-ov 7158 df-oprab 7159 df-mpo 7160 df-om 7580 df-1st 7688 df-2nd 7689 df-wrecs 7946 df-recs 8007 df-rdg 8045 df-1o 8101 df-oadd 8105 df-er 8288 df-en 8509 df-dom 8510 df-sdom 8511 df-fin 8512 df-pnf 10676 df-mnf 10677 df-xr 10678 df-ltxr 10679 df-le 10680 df-sub 10871 df-neg 10872 df-nn 11638 df-2 11699 df-3 11700 df-4 11701 df-5 11702 df-6 11703 df-7 11704 df-8 11705 df-9 11706 df-n0 11897 df-z 11981 df-dec 12098 df-uz 12243 df-fz 12892 df-struct 16484 df-ndx 16485 df-slot 16486 df-base 16488 df-sets 16489 df-plusg 16577 df-mulr 16578 df-starv 16579 df-tset 16583 df-ple 16584 df-ds 16586 df-unif 16587 df-0g 16714 df-mgm 17851 df-sgrp 17900 df-mnd 17911 df-grp 18105 df-cmn 18907 df-mgp 19239 df-ur 19251 df-ring 19298 df-cring 19299 df-cnfld 20545 |
This theorem is referenced by: cndrng 20573 cnfldinv 20575 cnfldexp 20577 cnsubrglem 20594 cnsubdrglem 20595 zsssubrg 20602 cnmgpid 20606 gzrngunitlem 20609 expmhm 20613 nn0srg 20614 rge0srg 20615 zring1 20627 re1r 20756 clm1 23676 isclmp 23700 cnlmod 23743 cphsubrglem 23780 taylply2 24955 efsubm 25134 amgmlem 25566 amgm 25567 wilthlem2 25645 wilthlem3 25646 dchrelbas3 25813 dchrzrh1 25819 dchrmulcl 25824 dchrn0 25825 dchrinvcl 25828 dchrfi 25830 dchrabs 25835 sumdchr2 25845 rpvmasum2 26087 qrng1 26197 psgnid 30739 cnmsgn0g 30788 altgnsg 30791 xrge0slmod 30917 iistmd 31145 xrge0iifmhm 31182 cnsrexpcl 39763 rngunsnply 39771 proot1ex 39799 amgmwlem 44902 amgmlemALT 44903 |
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