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| Mirrors > Home > ILE Home > Th. List > wepo | GIF version | ||
| Description: A well-ordering is a partial ordering. (Contributed by Jim Kingdon, 23-Sep-2021.) |
| Ref | Expression |
|---|---|
| wepo | ⊢ ((𝑅 We 𝐴 ∧ 𝐴 ∈ 𝑉) → 𝑅 Po 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | wefr 4498 | . . . 4 ⊢ (𝑅 We 𝐴 → 𝑅 Fr 𝐴) | |
| 2 | frirrg 4490 | . . . 4 ⊢ ((𝑅 Fr 𝐴 ∧ 𝐴 ∈ 𝑉 ∧ 𝑥 ∈ 𝐴) → ¬ 𝑥𝑅𝑥) | |
| 3 | 1, 2 | syl3an1 1311 | . . 3 ⊢ ((𝑅 We 𝐴 ∧ 𝐴 ∈ 𝑉 ∧ 𝑥 ∈ 𝐴) → ¬ 𝑥𝑅𝑥) |
| 4 | 3 | 3expa 1234 | . 2 ⊢ (((𝑅 We 𝐴 ∧ 𝐴 ∈ 𝑉) ∧ 𝑥 ∈ 𝐴) → ¬ 𝑥𝑅𝑥) |
| 5 | df-3an 1011 | . . 3 ⊢ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴) ↔ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴) ∧ 𝑧 ∈ 𝐴)) | |
| 6 | df-wetr 4474 | . . . . . . . . . 10 ⊢ (𝑅 We 𝐴 ↔ (𝑅 Fr 𝐴 ∧ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐴 ∀𝑧 ∈ 𝐴 ((𝑥𝑅𝑦 ∧ 𝑦𝑅𝑧) → 𝑥𝑅𝑧))) | |
| 7 | 6 | simprbi 275 | . . . . . . . . 9 ⊢ (𝑅 We 𝐴 → ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐴 ∀𝑧 ∈ 𝐴 ((𝑥𝑅𝑦 ∧ 𝑦𝑅𝑧) → 𝑥𝑅𝑧)) |
| 8 | 7 | adantr 276 | . . . . . . . 8 ⊢ ((𝑅 We 𝐴 ∧ 𝐴 ∈ 𝑉) → ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐴 ∀𝑧 ∈ 𝐴 ((𝑥𝑅𝑦 ∧ 𝑦𝑅𝑧) → 𝑥𝑅𝑧)) |
| 9 | 8 | r19.21bi 2638 | . . . . . . 7 ⊢ (((𝑅 We 𝐴 ∧ 𝐴 ∈ 𝑉) ∧ 𝑥 ∈ 𝐴) → ∀𝑦 ∈ 𝐴 ∀𝑧 ∈ 𝐴 ((𝑥𝑅𝑦 ∧ 𝑦𝑅𝑧) → 𝑥𝑅𝑧)) |
| 10 | 9 | r19.21bi 2638 | . . . . . 6 ⊢ ((((𝑅 We 𝐴 ∧ 𝐴 ∈ 𝑉) ∧ 𝑥 ∈ 𝐴) ∧ 𝑦 ∈ 𝐴) → ∀𝑧 ∈ 𝐴 ((𝑥𝑅𝑦 ∧ 𝑦𝑅𝑧) → 𝑥𝑅𝑧)) |
| 11 | 10 | anasss 403 | . . . . 5 ⊢ (((𝑅 We 𝐴 ∧ 𝐴 ∈ 𝑉) ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴)) → ∀𝑧 ∈ 𝐴 ((𝑥𝑅𝑦 ∧ 𝑦𝑅𝑧) → 𝑥𝑅𝑧)) |
| 12 | 11 | r19.21bi 2638 | . . . 4 ⊢ ((((𝑅 We 𝐴 ∧ 𝐴 ∈ 𝑉) ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴)) ∧ 𝑧 ∈ 𝐴) → ((𝑥𝑅𝑦 ∧ 𝑦𝑅𝑧) → 𝑥𝑅𝑧)) |
| 13 | 12 | anasss 403 | . . 3 ⊢ (((𝑅 We 𝐴 ∧ 𝐴 ∈ 𝑉) ∧ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴) ∧ 𝑧 ∈ 𝐴)) → ((𝑥𝑅𝑦 ∧ 𝑦𝑅𝑧) → 𝑥𝑅𝑧)) |
| 14 | 5, 13 | sylan2b 287 | . 2 ⊢ (((𝑅 We 𝐴 ∧ 𝐴 ∈ 𝑉) ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐴 ∧ 𝑧 ∈ 𝐴)) → ((𝑥𝑅𝑦 ∧ 𝑦𝑅𝑧) → 𝑥𝑅𝑧)) |
| 15 | 4, 14 | ispod 4444 | 1 ⊢ ((𝑅 We 𝐴 ∧ 𝐴 ∈ 𝑉) → 𝑅 Po 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 104 ∧ w3a 1009 ∈ wcel 2209 ∀wral 2528 class class class wbr 4125 Po wpo 4434 Fr wfr 4468 We wwe 4470 |
| 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 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-sep 4244 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-sn 3711 df-pr 3712 df-op 3714 df-br 4126 df-po 4436 df-frfor 4471 df-frind 4472 df-wetr 4474 |
| This theorem is referenced by: (None) |
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