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| Mirrors > Home > MPE Home > Th. List > ltstrd | Structured version Visualization version GIF version | ||
| Description: Surreal less-than is transitive. (Contributed by Scott Fenton, 8-Dec-2021.) |
| Ref | Expression |
|---|---|
| ltstrd.1 | ⊢ (𝜑 → 𝐴 ∈ No) |
| ltstrd.2 | ⊢ (𝜑 → 𝐵 ∈ No) |
| ltstrd.3 | ⊢ (𝜑 → 𝐶 ∈ No) |
| ltstrd.4 | ⊢ (𝜑 → 𝐴 <s 𝐵) |
| ltstrd.5 | ⊢ (𝜑 → 𝐵 <s 𝐶) |
| Ref | Expression |
|---|---|
| ltstrd | ⊢ (𝜑 → 𝐴 <s 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltstrd.4 | . 2 ⊢ (𝜑 → 𝐴 <s 𝐵) | |
| 2 | ltstrd.5 | . 2 ⊢ (𝜑 → 𝐵 <s 𝐶) | |
| 3 | ltstrd.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ No) | |
| 4 | ltstrd.2 | . . 3 ⊢ (𝜑 → 𝐵 ∈ No) | |
| 5 | ltstrd.3 | . . 3 ⊢ (𝜑 → 𝐶 ∈ No) | |
| 6 | ltstr 28109 | . . 3 ⊢ ((𝐴 ∈ No ∧ 𝐵 ∈ No ∧ 𝐶 ∈ No) → ((𝐴 <s 𝐵 ∧ 𝐵 <s 𝐶) → 𝐴 <s 𝐶)) | |
| 7 | 3, 4, 5, 6 | syl3anc 1398 | . 2 ⊢ (𝜑 → ((𝐴 <s 𝐵 ∧ 𝐵 <s 𝐶) → 𝐴 <s 𝐶)) |
| 8 | 1, 2, 7 | mp2and 712 | 1 ⊢ (𝜑 → 𝐴 <s 𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2144 class class class wbr 5102 Nocsur 28002 <s clts 28003 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pr 5390 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-ord 6365 df-on 6366 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-fv 6546 df-1o 8479 df-2o 8480 df-no 28005 df-lts 28006 |
| This theorem is used by: conway 28170 sltstr 28178 lesrec 28190 ltslpss 28299 cofcutr 28315 addsproplem2 28361 addsproplem6 28365 lt2addsd 28404 negsproplem6 28424 mulsproplem5 28511 mulsproplem6 28512 mulsproplem7 28513 mulsproplem8 28514 mulsproplem13 28519 mulsproplem14 28520 precsexlem8 28605 precsexlem9 28606 precsexlem11 28608 om2noseqlt 28690 zcuts 28798 twocut 28814 pw2cut2 28853 bdayfinbndlem1 28858 recut 28885 1reno 28888 |
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