| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > lestric | Structured version Visualization version GIF version | ||
| Description: Surreal trichotomy law. (Contributed by Scott Fenton, 14-Feb-2025.) |
| Ref | Expression |
|---|---|
| lestric | ⊢ ((𝐴 ∈ No ∧ 𝐵 ∈ No ) → (𝐴 ≤s 𝐵 ∨ 𝐵 ≤s 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltsasym 27782 | . . . 4 ⊢ ((𝐵 ∈ No ∧ 𝐴 ∈ No ) → (𝐵 <s 𝐴 → ¬ 𝐴 <s 𝐵)) | |
| 2 | ltnles 27787 | . . . . 5 ⊢ ((𝐵 ∈ No ∧ 𝐴 ∈ No ) → (𝐵 <s 𝐴 ↔ ¬ 𝐴 ≤s 𝐵)) | |
| 3 | 2 | bicomd 225 | . . . 4 ⊢ ((𝐵 ∈ No ∧ 𝐴 ∈ No ) → (¬ 𝐴 ≤s 𝐵 ↔ 𝐵 <s 𝐴)) |
| 4 | lenlts 27786 | . . . 4 ⊢ ((𝐵 ∈ No ∧ 𝐴 ∈ No ) → (𝐵 ≤s 𝐴 ↔ ¬ 𝐴 <s 𝐵)) | |
| 5 | 1, 3, 4 | 3imtr4d 296 | . . 3 ⊢ ((𝐵 ∈ No ∧ 𝐴 ∈ No ) → (¬ 𝐴 ≤s 𝐵 → 𝐵 ≤s 𝐴)) |
| 6 | 5 | orrd 872 | . 2 ⊢ ((𝐵 ∈ No ∧ 𝐴 ∈ No ) → (𝐴 ≤s 𝐵 ∨ 𝐵 ≤s 𝐴)) |
| 7 | 6 | ancoms 461 | 1 ⊢ ((𝐴 ∈ No ∧ 𝐵 ∈ No ) → (𝐴 ≤s 𝐵 ∨ 𝐵 ≤s 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 398 ∨ wo 856 ∈ wcel 2136 class class class wbr 5094 No csur 27674 <s clts 27675 ≤s cles 27778 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1809 ax-4 1823 ax-5 1924 ax-6 1981 ax-7 2022 ax-8 2138 ax-9 2146 ax-10 2169 ax-11 2185 ax-12 2206 ax-ext 2728 ax-sep 5240 ax-nul 5250 ax-pr 5384 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-3or 1096 df-3an 1097 df-tru 1557 df-fal 1567 df-ex 1794 df-nf 1798 df-sb 2085 df-mo 2560 df-eu 2590 df-clab 2735 df-cleq 2748 df-clel 2831 df-nfc 2905 df-ne 2952 df-ral 3071 df-rex 3081 df-rab 3409 df-v 3450 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4281 df-if 4475 df-pw 4551 df-sn 4577 df-pr 4579 df-tp 4581 df-op 4583 df-uni 4860 df-br 5095 df-opab 5157 df-mpt 5176 df-tr 5202 df-id 5535 df-eprel 5540 df-po 5548 df-so 5549 df-fr 5593 df-we 5595 df-xp 5646 df-rel 5647 df-cnv 5648 df-co 5649 df-dm 5650 df-rn 5651 df-res 5652 df-ima 5653 df-ord 6338 df-on 6339 df-suc 6341 df-iota 6466 df-fun 6512 df-fn 6513 df-f 6514 df-fv 6518 df-1o 8425 df-2o 8426 df-no 27677 df-lts 27678 df-les 27779 |
| This theorem is referenced by: maxs2 27804 mins1 27805 absmuls 28307 abssge0 28308 absnegs 28310 leabss 28311 elzn0s 28461 zsoring 28472 bdayfinbndlem1 28530 z12bday 28548 bdayfin 28550 |
| Copyright terms: Public domain | W3C validator |