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| Mirrors > Home > MPE Home > Th. List > soasym | Structured version Visualization version GIF version | ||
| Description: Asymmetry law for strict orderings. (Contributed by Scott Fenton, 24-Nov-2021.) |
| Ref | Expression |
|---|---|
| soasym | ⊢ ((𝑅 Or 𝐴 ∧ (𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴)) → (𝑋𝑅𝑌 → ¬ 𝑌𝑅𝑋)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sotric 5552 | . 2 ⊢ ((𝑅 Or 𝐴 ∧ (𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴)) → (𝑋𝑅𝑌 ↔ ¬ (𝑋 = 𝑌 ∨ 𝑌𝑅𝑋))) | |
| 2 | pm2.46 882 | . 2 ⊢ (¬ (𝑋 = 𝑌 ∨ 𝑌𝑅𝑋) → ¬ 𝑌𝑅𝑋) | |
| 3 | 1, 2 | biimtrdi 253 | 1 ⊢ ((𝑅 Or 𝐴 ∧ (𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴)) → (𝑋𝑅𝑌 → ¬ 𝑌𝑅𝑋)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 ∨ wo 847 = wceq 1541 ∈ wcel 2111 class class class wbr 5089 Or wor 5521 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-ext 2703 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2710 df-cleq 2723 df-clel 2806 df-ral 3048 df-rab 3396 df-v 3438 df-dif 3900 df-un 3902 df-ss 3914 df-nul 4281 df-if 4473 df-sn 4574 df-pr 4576 df-op 4580 df-br 5090 df-po 5522 df-so 5523 |
| This theorem is referenced by: fiinfg 9385 noresle 27636 nosupprefixmo 27639 noinfprefixmo 27640 nosupbnd1lem1 27647 nosupbnd1lem4 27650 nosupbnd2lem1 27654 nosupbnd2 27655 noinfbnd1lem1 27662 noinfbnd1lem4 27665 noinfbnd2lem1 27669 noinfbnd2 27670 sltasym 27687 or2expropbi 47073 prproropf1olem3 47544 |
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