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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 13999 | . 2 ⊢ (𝑅 ∈ LRing → 𝑅 ∈ NzRing) | |
| 2 | lringnz.1 | . . 3 ⊢ 1 = (1r‘𝑅) | |
| 3 | lringnz.2 | . . 3 ⊢ 0 = (0g‘𝑅) | |
| 4 | 2, 3 | nzrnz 13988 | . 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 2177 ≠ wne 2377 ‘cfv 5276 0gc0g 13132 1rcur 13765 NzRingcnzr 13985 LRingclring 13996 |
| 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 2188 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2193 df-cleq 2199 df-clel 2202 df-nfc 2338 df-ne 2378 df-rex 2491 df-rab 2494 df-v 2775 df-un 3171 df-in 3173 df-ss 3180 df-sn 3640 df-pr 3641 df-op 3643 df-uni 3853 df-br 4048 df-iota 5237 df-fv 5284 df-nzr 13986 df-lring 13997 |
| This theorem is referenced by: aprap 14092 |
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