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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 2610 | . . 3 ⊢ (1r‘𝑅) = (1r‘𝑅) | |
2 | eqid 2610 | . . 3 ⊢ (0g‘𝑅) = (0g‘𝑅) | |
3 | 1, 2 | isnzr 19080 | . 2 ⊢ (𝑅 ∈ NzRing ↔ (𝑅 ∈ Ring ∧ (1r‘𝑅) ≠ (0g‘𝑅))) |
4 | 3 | simplbi 475 | 1 ⊢ (𝑅 ∈ NzRing → 𝑅 ∈ Ring) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 1977 ≠ wne 2780 ‘cfv 5804 0gc0g 15923 1rcur 18324 Ringcrg 18370 NzRingcnzr 19078 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-rex 2902 df-rab 2905 df-v 3175 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-iota 5768 df-fv 5812 df-nzr 19079 |
This theorem is referenced by: opprnzr 19086 nzrunit 19088 domnring 19117 domnchr 19699 uvcf1 19950 lindfind2 19976 frlmisfrlm 20006 nminvr 22283 deg1pw 23684 ply1nz 23685 ply1remlem 23726 ply1rem 23727 facth1 23728 fta1glem1 23729 fta1glem2 23730 zrhnm 29341 mon1pid 36802 mon1psubm 36803 nzrneg1ne0 41659 islindeps2 42066 |
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