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| Mirrors > Home > MPE Home > Th. List > lesid | Structured version Visualization version GIF version | ||
| Description: Surreal less-than or equal is reflexive. Theorem 0(iii) of [Conway] p. 16. (Contributed by Scott Fenton, 7-Aug-2024.) |
| Ref | Expression |
|---|---|
| lesid | ⊢ (𝐴 ∈ No → 𝐴 ≤s 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltsirr 27787 | . 2 ⊢ (𝐴 ∈ No → ¬ 𝐴 <s 𝐴) | |
| 2 | lenlts 27793 | . . 3 ⊢ ((𝐴 ∈ No ∧ 𝐴 ∈ No ) → (𝐴 ≤s 𝐴 ↔ ¬ 𝐴 <s 𝐴)) | |
| 3 | 2 | anidms 574 | . 2 ⊢ (𝐴 ∈ No → (𝐴 ≤s 𝐴 ↔ ¬ 𝐴 <s 𝐴)) |
| 4 | 1, 3 | mpbird 259 | 1 ⊢ (𝐴 ∈ No → 𝐴 ≤s 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∈ wcel 2141 class class class wbr 5099 No csur 27681 <s clts 27682 ≤s cles 27785 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5245 ax-nul 5255 ax-pr 5389 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-tp 4586 df-op 4588 df-uni 4865 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5540 df-eprel 5545 df-po 5553 df-so 5554 df-fr 5598 df-we 5600 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-ord 6345 df-on 6346 df-suc 6348 df-iota 6473 df-fun 6519 df-fn 6520 df-f 6521 df-fv 6525 df-1o 8432 df-2o 8433 df-no 27684 df-lts 27685 df-les 27786 |
| This theorem is referenced by: maxs1 27810 maxs2 27811 mins1 27812 mins2 27813 0lt1s 27882 cofcutrtime 27997 cofss 28000 coiniss 28001 cutlt 28002 cutmax 28004 cutmin 28005 lemulsd 28208 mulsge0d 28216 lemuls1ad 28252 abs0s 28312 leabss 28318 oncutlt 28334 n0sge0 28408 n0fincut 28425 uzsind 28475 zcuts 28477 zsoring 28479 halfcut 28528 addhalfcut 28529 1reno 28567 |
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