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Mirrors > Home > MPE Home > Th. List > nzrring | Structured version Visualization version GIF version |
Description: A nonzero ring is a ring. (Contributed by Stefan O'Rear, 24-Feb-2015.) |
Ref | Expression |
---|---|
nzrring | ⊢ (𝑅 ∈ NzRing → 𝑅 ∈ Ring) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2821 | . . 3 ⊢ (1r‘𝑅) = (1r‘𝑅) | |
2 | eqid 2821 | . . 3 ⊢ (0g‘𝑅) = (0g‘𝑅) | |
3 | 1, 2 | isnzr 20032 | . 2 ⊢ (𝑅 ∈ NzRing ↔ (𝑅 ∈ Ring ∧ (1r‘𝑅) ≠ (0g‘𝑅))) |
4 | 3 | simplbi 500 | 1 ⊢ (𝑅 ∈ NzRing → 𝑅 ∈ Ring) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2114 ≠ wne 3016 ‘cfv 6355 0gc0g 16713 1rcur 19251 Ringcrg 19297 NzRingcnzr 20030 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-rab 3147 df-v 3496 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-br 5067 df-iota 6314 df-fv 6363 df-nzr 20031 |
This theorem is referenced by: opprnzr 20038 nzrunit 20040 domnring 20069 domnchr 20679 uvcf1 20936 lindfind2 20962 frlmisfrlm 20992 nminvr 23278 deg1pw 24714 ply1nz 24715 ply1remlem 24756 ply1rem 24757 facth1 24758 fta1glem1 24759 fta1glem2 24760 krull 30980 zrhnm 31210 uvcn0 39171 0prjspnlem 39288 mon1pid 39825 mon1psubm 39826 nzrneg1ne0 44160 islindeps2 44558 |
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