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Mirrors > Home > MPE Home > Th. List > cndrngOLD | Structured version Visualization version GIF version |
Description: Obsolete version of cndrng 21343 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 21300 | . . . 4 ⊢ ℂ = (Base‘ℂfld) | |
2 | 1 | a1i 11 | . . 3 ⊢ (⊤ → ℂ = (Base‘ℂfld)) |
3 | cnfldmul 21304 | . . . 4 ⊢ · = (.r‘ℂfld) | |
4 | 3 | a1i 11 | . . 3 ⊢ (⊤ → · = (.r‘ℂfld)) |
5 | cnfld0 21337 | . . . 4 ⊢ 0 = (0g‘ℂfld) | |
6 | 5 | a1i 11 | . . 3 ⊢ (⊤ → 0 = (0g‘ℂfld)) |
7 | cnfld1 21338 | . . . 4 ⊢ 1 = (1r‘ℂfld) | |
8 | 7 | a1i 11 | . . 3 ⊢ (⊤ → 1 = (1r‘ℂfld)) |
9 | cnring 21335 | . . . 4 ⊢ ℂfld ∈ Ring | |
10 | 9 | a1i 11 | . . 3 ⊢ (⊤ → ℂfld ∈ Ring) |
11 | mulne0 11888 | . . . 4 ⊢ (((𝑥 ∈ ℂ ∧ 𝑥 ≠ 0) ∧ (𝑦 ∈ ℂ ∧ 𝑦 ≠ 0)) → (𝑥 · 𝑦) ≠ 0) | |
12 | 11 | 3adant1 1127 | . . 3 ⊢ ((⊤ ∧ (𝑥 ∈ ℂ ∧ 𝑥 ≠ 0) ∧ (𝑦 ∈ ℂ ∧ 𝑦 ≠ 0)) → (𝑥 · 𝑦) ≠ 0) |
13 | ax-1ne0 11209 | . . . 4 ⊢ 1 ≠ 0 | |
14 | 13 | a1i 11 | . . 3 ⊢ (⊤ → 1 ≠ 0) |
15 | reccl 11912 | . . . 4 ⊢ ((𝑥 ∈ ℂ ∧ 𝑥 ≠ 0) → (1 / 𝑥) ∈ ℂ) | |
16 | 15 | adantl 480 | . . 3 ⊢ ((⊤ ∧ (𝑥 ∈ ℂ ∧ 𝑥 ≠ 0)) → (1 / 𝑥) ∈ ℂ) |
17 | recid2 11920 | . . . 4 ⊢ ((𝑥 ∈ ℂ ∧ 𝑥 ≠ 0) → ((1 / 𝑥) · 𝑥) = 1) | |
18 | 17 | adantl 480 | . . 3 ⊢ ((⊤ ∧ (𝑥 ∈ ℂ ∧ 𝑥 ≠ 0)) → ((1 / 𝑥) · 𝑥) = 1) |
19 | 2, 4, 6, 8, 10, 12, 14, 16, 18 | isdrngd 20669 | . 2 ⊢ (⊤ → ℂfld ∈ DivRing) |
20 | 19 | mptru 1540 | 1 ⊢ ℂfld ∈ DivRing |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 394 = wceq 1533 ⊤wtru 1534 ∈ wcel 2098 ≠ wne 2929 ‘cfv 6549 (class class class)co 7419 ℂcc 11138 0cc0 11140 1c1 11141 · cmul 11145 / cdiv 11903 Basecbs 17183 .rcmulr 17237 0gc0g 17424 1rcur 20133 Ringcrg 20185 DivRingcdr 20636 ℂfldccnfld 21296 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2696 ax-rep 5286 ax-sep 5300 ax-nul 5307 ax-pow 5365 ax-pr 5429 ax-un 7741 ax-cnex 11196 ax-resscn 11197 ax-1cn 11198 ax-icn 11199 ax-addcl 11200 ax-addrcl 11201 ax-mulcl 11202 ax-mulrcl 11203 ax-mulcom 11204 ax-addass 11205 ax-mulass 11206 ax-distr 11207 ax-i2m1 11208 ax-1ne0 11209 ax-1rid 11210 ax-rnegex 11211 ax-rrecex 11212 ax-cnre 11213 ax-pre-lttri 11214 ax-pre-lttrn 11215 ax-pre-ltadd 11216 ax-pre-mulgt0 11217 ax-addf 11219 ax-mulf 11220 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2703 df-cleq 2717 df-clel 2802 df-nfc 2877 df-ne 2930 df-nel 3036 df-ral 3051 df-rex 3060 df-rmo 3363 df-reu 3364 df-rab 3419 df-v 3463 df-sbc 3774 df-csb 3890 df-dif 3947 df-un 3949 df-in 3951 df-ss 3961 df-pss 3964 df-nul 4323 df-if 4531 df-pw 4606 df-sn 4631 df-pr 4633 df-tp 4635 df-op 4637 df-uni 4910 df-iun 4999 df-br 5150 df-opab 5212 df-mpt 5233 df-tr 5267 df-id 5576 df-eprel 5582 df-po 5590 df-so 5591 df-fr 5633 df-we 5635 df-xp 5684 df-rel 5685 df-cnv 5686 df-co 5687 df-dm 5688 df-rn 5689 df-res 5690 df-ima 5691 df-pred 6307 df-ord 6374 df-on 6375 df-lim 6376 df-suc 6377 df-iota 6501 df-fun 6551 df-fn 6552 df-f 6553 df-f1 6554 df-fo 6555 df-f1o 6556 df-fv 6557 df-riota 7375 df-ov 7422 df-oprab 7423 df-mpo 7424 df-om 7872 df-1st 7994 df-2nd 7995 df-tpos 8232 df-frecs 8287 df-wrecs 8318 df-recs 8392 df-rdg 8431 df-1o 8487 df-er 8725 df-en 8965 df-dom 8966 df-sdom 8967 df-fin 8968 df-pnf 11282 df-mnf 11283 df-xr 11284 df-ltxr 11285 df-le 11286 df-sub 11478 df-neg 11479 df-div 11904 df-nn 12246 df-2 12308 df-3 12309 df-4 12310 df-5 12311 df-6 12312 df-7 12313 df-8 12314 df-9 12315 df-n0 12506 df-z 12592 df-dec 12711 df-uz 12856 df-fz 13520 df-struct 17119 df-sets 17136 df-slot 17154 df-ndx 17166 df-base 17184 df-ress 17213 df-plusg 17249 df-mulr 17250 df-starv 17251 df-tset 17255 df-ple 17256 df-ds 17258 df-unif 17259 df-0g 17426 df-mgm 18603 df-sgrp 18682 df-mnd 18698 df-grp 18901 df-minusg 18902 df-cmn 19749 df-abl 19750 df-mgp 20087 df-rng 20105 df-ur 20134 df-ring 20187 df-cring 20188 df-oppr 20285 df-dvdsr 20308 df-unit 20309 df-invr 20339 df-dvr 20352 df-drng 20638 df-cnfld 21297 |
This theorem is referenced by: (None) |
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