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Mirrors > Home > MPE Home > Th. List > cndrngOLD | Structured version Visualization version GIF version |
Description: Obsolete version of cndrng 21319 as of 30-Apr-2025. (Contributed by Stefan O'Rear, 27-Nov-2014.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
cndrngOLD | ⊢ ℂfld ∈ DivRing |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnfldbas 21276 | . . . 4 ⊢ ℂ = (Base‘ℂfld) | |
2 | 1 | a1i 11 | . . 3 ⊢ (⊤ → ℂ = (Base‘ℂfld)) |
3 | cnfldmul 21280 | . . . 4 ⊢ · = (.r‘ℂfld) | |
4 | 3 | a1i 11 | . . 3 ⊢ (⊤ → · = (.r‘ℂfld)) |
5 | cnfld0 21313 | . . . 4 ⊢ 0 = (0g‘ℂfld) | |
6 | 5 | a1i 11 | . . 3 ⊢ (⊤ → 0 = (0g‘ℂfld)) |
7 | cnfld1 21314 | . . . 4 ⊢ 1 = (1r‘ℂfld) | |
8 | 7 | a1i 11 | . . 3 ⊢ (⊤ → 1 = (1r‘ℂfld)) |
9 | cnring 21311 | . . . 4 ⊢ ℂfld ∈ Ring | |
10 | 9 | a1i 11 | . . 3 ⊢ (⊤ → ℂfld ∈ Ring) |
11 | mulne0 11880 | . . . 4 ⊢ (((𝑥 ∈ ℂ ∧ 𝑥 ≠ 0) ∧ (𝑦 ∈ ℂ ∧ 𝑦 ≠ 0)) → (𝑥 · 𝑦) ≠ 0) | |
12 | 11 | 3adant1 1128 | . . 3 ⊢ ((⊤ ∧ (𝑥 ∈ ℂ ∧ 𝑥 ≠ 0) ∧ (𝑦 ∈ ℂ ∧ 𝑦 ≠ 0)) → (𝑥 · 𝑦) ≠ 0) |
13 | ax-1ne0 11201 | . . . 4 ⊢ 1 ≠ 0 | |
14 | 13 | a1i 11 | . . 3 ⊢ (⊤ → 1 ≠ 0) |
15 | reccl 11903 | . . . 4 ⊢ ((𝑥 ∈ ℂ ∧ 𝑥 ≠ 0) → (1 / 𝑥) ∈ ℂ) | |
16 | 15 | adantl 481 | . . 3 ⊢ ((⊤ ∧ (𝑥 ∈ ℂ ∧ 𝑥 ≠ 0)) → (1 / 𝑥) ∈ ℂ) |
17 | recid2 11911 | . . . 4 ⊢ ((𝑥 ∈ ℂ ∧ 𝑥 ≠ 0) → ((1 / 𝑥) · 𝑥) = 1) | |
18 | 17 | adantl 481 | . . 3 ⊢ ((⊤ ∧ (𝑥 ∈ ℂ ∧ 𝑥 ≠ 0)) → ((1 / 𝑥) · 𝑥) = 1) |
19 | 2, 4, 6, 8, 10, 12, 14, 16, 18 | isdrngd 20650 | . 2 ⊢ (⊤ → ℂfld ∈ DivRing) |
20 | 19 | mptru 1541 | 1 ⊢ ℂfld ∈ DivRing |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 395 = wceq 1534 ⊤wtru 1535 ∈ wcel 2099 ≠ wne 2936 ‘cfv 6542 (class class class)co 7414 ℂcc 11130 0cc0 11132 1c1 11133 · cmul 11137 / cdiv 11895 Basecbs 17173 .rcmulr 17227 0gc0g 17414 1rcur 20114 Ringcrg 20166 DivRingcdr 20617 ℂfldccnfld 21272 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2167 ax-ext 2699 ax-rep 5279 ax-sep 5293 ax-nul 5300 ax-pow 5359 ax-pr 5423 ax-un 7734 ax-cnex 11188 ax-resscn 11189 ax-1cn 11190 ax-icn 11191 ax-addcl 11192 ax-addrcl 11193 ax-mulcl 11194 ax-mulrcl 11195 ax-mulcom 11196 ax-addass 11197 ax-mulass 11198 ax-distr 11199 ax-i2m1 11200 ax-1ne0 11201 ax-1rid 11202 ax-rnegex 11203 ax-rrecex 11204 ax-cnre 11205 ax-pre-lttri 11206 ax-pre-lttrn 11207 ax-pre-ltadd 11208 ax-pre-mulgt0 11209 ax-addf 11211 ax-mulf 11212 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2530 df-eu 2559 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2937 df-nel 3043 df-ral 3058 df-rex 3067 df-rmo 3372 df-reu 3373 df-rab 3429 df-v 3472 df-sbc 3776 df-csb 3891 df-dif 3948 df-un 3950 df-in 3952 df-ss 3962 df-pss 3964 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-tp 4629 df-op 4631 df-uni 4904 df-iun 4993 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 df-id 5570 df-eprel 5576 df-po 5584 df-so 5585 df-fr 5627 df-we 5629 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-dm 5682 df-rn 5683 df-res 5684 df-ima 5685 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7865 df-1st 7987 df-2nd 7988 df-tpos 8225 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-1o 8480 df-er 8718 df-en 8958 df-dom 8959 df-sdom 8960 df-fin 8961 df-pnf 11274 df-mnf 11275 df-xr 11276 df-ltxr 11277 df-le 11278 df-sub 11470 df-neg 11471 df-div 11896 df-nn 12237 df-2 12299 df-3 12300 df-4 12301 df-5 12302 df-6 12303 df-7 12304 df-8 12305 df-9 12306 df-n0 12497 df-z 12583 df-dec 12702 df-uz 12847 df-fz 13511 df-struct 17109 df-sets 17126 df-slot 17144 df-ndx 17156 df-base 17174 df-ress 17203 df-plusg 17239 df-mulr 17240 df-starv 17241 df-tset 17245 df-ple 17246 df-ds 17248 df-unif 17249 df-0g 17416 df-mgm 18593 df-sgrp 18672 df-mnd 18688 df-grp 18886 df-minusg 18887 df-cmn 19730 df-abl 19731 df-mgp 20068 df-rng 20086 df-ur 20115 df-ring 20168 df-cring 20169 df-oppr 20266 df-dvdsr 20289 df-unit 20290 df-invr 20320 df-dvr 20333 df-drng 20619 df-cnfld 21273 |
This theorem is referenced by: (None) |
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