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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 5601 | . 2 ⊢ ((𝑅 Or 𝐴 ∧ (𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴)) → (𝑋𝑅𝑌 ↔ ¬ (𝑋 = 𝑌 ∨ 𝑌𝑅𝑋))) | |
| 2 | pm2.46 896 | . 2 ⊢ (¬ (𝑋 = 𝑌 ∨ 𝑌𝑅𝑋) → ¬ 𝑌𝑅𝑋) | |
| 3 | 1, 2 | biimtrdi 256 | 1 ⊢ ((𝑅 Or 𝐴 ∧ (𝑋 ∈ 𝐴 ∧ 𝑌 ∈ 𝐴)) → (𝑋𝑅𝑌 → ¬ 𝑌𝑅𝑋)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ∧ wa 401 ∨ wo 861 = wceq 1570 ∈ wcel 2146 class class class wbr 5111 Or wor 5570 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-ext 2737 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2744 df-cleq 2757 df-clel 2840 df-ral 3082 df-rab 3419 df-v 3459 df-dif 3909 df-un 3911 df-ss 3923 df-nul 4287 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 df-br 5112 df-po 5571 df-so 5572 |
| This theorem is used by: fiinfg 9468 noresle 27914 nosupprefixmo 27917 noinfprefixmo 27918 nosupbnd1lem1 27925 nosupbnd1lem4 27928 nosupbnd2lem1 27932 nosupbnd2 27933 noinfbnd1lem1 27940 noinfbnd1lem4 27943 noinfbnd2lem1 27947 noinfbnd2 27948 ltsasym 27965 or2expropbi 47831 prproropf1olem3 48314 |
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