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| Mirrors > Home > ILE Home > Th. List > lringnz | GIF version | ||
| Description: A local ring is a nonzero ring. (Contributed by Jim Kingdon, 20-Feb-2025.) (Revised by SN, 23-Feb-2025.) |
| Ref | Expression |
|---|---|
| lringnz.1 | ⊢ 1 = (1r‘𝑅) |
| lringnz.2 | ⊢ 0 = (0g‘𝑅) |
| Ref | Expression |
|---|---|
| lringnz | ⊢ (𝑅 ∈ LRing → 1 ≠ 0 ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lringnzr 14070 | . 2 ⊢ (𝑅 ∈ LRing → 𝑅 ∈ NzRing) | |
| 2 | lringnz.1 | . . 3 ⊢ 1 = (1r‘𝑅) | |
| 3 | lringnz.2 | . . 3 ⊢ 0 = (0g‘𝑅) | |
| 4 | 2, 3 | nzrnz 14059 | . 2 ⊢ (𝑅 ∈ NzRing → 1 ≠ 0 ) |
| 5 | 1, 4 | syl 14 | 1 ⊢ (𝑅 ∈ LRing → 1 ≠ 0 ) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1373 ∈ wcel 2178 ≠ wne 2378 ‘cfv 5290 0gc0g 13203 1rcur 13836 NzRingcnzr 14056 LRingclring 14067 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-ext 2189 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-ne 2379 df-rex 2492 df-rab 2495 df-v 2778 df-un 3178 df-in 3180 df-ss 3187 df-sn 3649 df-pr 3650 df-op 3652 df-uni 3865 df-br 4060 df-iota 5251 df-fv 5298 df-nzr 14057 df-lring 14068 |
| This theorem is referenced by: aprap 14163 |
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