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| Mirrors > Home > MPE Home > Th. List > Mathboxes > oneptri | Structured version Visualization version GIF version | ||
| Description: The strict, complete (linear) order on the ordinals is complete. Theorem 1.9(iii) of [Schloeder] p. 1. (Contributed by RP, 15-Jan-2025.) |
| Ref | Expression |
|---|---|
| oneptri | ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 E 𝐵 ∨ 𝐵 E 𝐴 ∨ 𝐴 = 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | epsoon 43235 | . . 3 ⊢ E Or On | |
| 2 | sotrieq 5579 | . . 3 ⊢ (( E Or On ∧ (𝐴 ∈ On ∧ 𝐵 ∈ On)) → (𝐴 = 𝐵 ↔ ¬ (𝐴 E 𝐵 ∨ 𝐵 E 𝐴))) | |
| 3 | 1, 2 | mpan 690 | . 2 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 = 𝐵 ↔ ¬ (𝐴 E 𝐵 ∨ 𝐵 E 𝐴))) |
| 4 | xoror 1518 | . . 3 ⊢ (((𝐴 E 𝐵 ∨ 𝐵 E 𝐴) ⊻ 𝐴 = 𝐵) → ((𝐴 E 𝐵 ∨ 𝐵 E 𝐴) ∨ 𝐴 = 𝐵)) | |
| 5 | xorcom 1514 | . . . 4 ⊢ (((𝐴 E 𝐵 ∨ 𝐵 E 𝐴) ⊻ 𝐴 = 𝐵) ↔ (𝐴 = 𝐵 ⊻ (𝐴 E 𝐵 ∨ 𝐵 E 𝐴))) | |
| 6 | df-xor 1512 | . . . 4 ⊢ ((𝐴 = 𝐵 ⊻ (𝐴 E 𝐵 ∨ 𝐵 E 𝐴)) ↔ ¬ (𝐴 = 𝐵 ↔ (𝐴 E 𝐵 ∨ 𝐵 E 𝐴))) | |
| 7 | xor3 382 | . . . 4 ⊢ (¬ (𝐴 = 𝐵 ↔ (𝐴 E 𝐵 ∨ 𝐵 E 𝐴)) ↔ (𝐴 = 𝐵 ↔ ¬ (𝐴 E 𝐵 ∨ 𝐵 E 𝐴))) | |
| 8 | 5, 6, 7 | 3bitrri 298 | . . 3 ⊢ ((𝐴 = 𝐵 ↔ ¬ (𝐴 E 𝐵 ∨ 𝐵 E 𝐴)) ↔ ((𝐴 E 𝐵 ∨ 𝐵 E 𝐴) ⊻ 𝐴 = 𝐵)) |
| 9 | df-3or 1087 | . . 3 ⊢ ((𝐴 E 𝐵 ∨ 𝐵 E 𝐴 ∨ 𝐴 = 𝐵) ↔ ((𝐴 E 𝐵 ∨ 𝐵 E 𝐴) ∨ 𝐴 = 𝐵)) | |
| 10 | 4, 8, 9 | 3imtr4i 292 | . 2 ⊢ ((𝐴 = 𝐵 ↔ ¬ (𝐴 E 𝐵 ∨ 𝐵 E 𝐴)) → (𝐴 E 𝐵 ∨ 𝐵 E 𝐴 ∨ 𝐴 = 𝐵)) |
| 11 | 3, 10 | syl 17 | 1 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 E 𝐵 ∨ 𝐵 E 𝐴 ∨ 𝐴 = 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 ∨ wo 847 ∨ w3o 1085 ⊻ wxo 1511 = wceq 1540 ∈ wcel 2109 class class class wbr 5109 E cep 5539 Or wor 5547 Oncon0 6334 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-ext 2702 ax-sep 5253 ax-nul 5263 ax-pr 5389 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-xor 1512 df-tru 1543 df-fal 1553 df-ex 1780 df-sb 2066 df-clab 2709 df-cleq 2722 df-clel 2804 df-ne 2927 df-ral 3046 df-rex 3055 df-rab 3409 df-v 3452 df-dif 3919 df-un 3921 df-in 3923 df-ss 3933 df-pss 3936 df-nul 4299 df-if 4491 df-pw 4567 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4874 df-br 5110 df-opab 5172 df-tr 5217 df-eprel 5540 df-po 5548 df-so 5549 df-fr 5593 df-we 5595 df-ord 6337 df-on 6338 |
| This theorem is referenced by: (None) |
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