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| Mirrors > Home > MPE Home > Th. List > 0no | Structured version Visualization version GIF version | ||
| Description: Surreal zero is a surreal. (Contributed by Scott Fenton, 7-Aug-2024.) |
| Ref | Expression |
|---|---|
| 0no | ⊢ 0s ∈ No |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-0s 28223 | . 2 ⊢ 0s = (∅ |s ∅) | |
| 2 | 0elpw 5321 | . . . 4 ⊢ ∅ ∈ 𝒫 No | |
| 3 | nulsgts 28192 | . . . 4 ⊢ (∅ ∈ 𝒫 No → ∅ <<s ∅) | |
| 4 | 2, 3 | ax-mp 5 | . . 3 ⊢ ∅ <<s ∅ |
| 5 | cutscl 28198 | . . 3 ⊢ (∅ <<s ∅ → (∅ |s ∅) ∈ No) | |
| 6 | 4, 5 | ax-mp 5 | . 2 ⊢ (∅ |s ∅) ∈ No |
| 7 | 1, 6 | eqeltri 2860 | 1 ⊢ 0s ∈ No |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2147 ∅c0 4281 𝒫 cpw 4560 class class class wbr 5106 (class class class)co 7443 Nocsur 28027 <<s cslts 28173 |s ccuts 28175 0s c0s 28221 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5235 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7775 |
| 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-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-tp 4593 df-op 4839 df-uni 4871 df-int 4911 df-br 5107 df-opab 5171 df-mpt 5190 df-tr 5216 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-ord 6383 df-on 6384 df-suc 6386 df-iota 6512 df-fun 6560 df-fn 6561 df-f 6562 df-f1 6563 df-fo 6564 df-f1o 6565 df-fv 6566 df-riota 7400 df-ov 7446 df-oprab 7447 df-mpo 7448 df-1o 8504 df-2o 8505 df-no 28030 df-lts 28031 df-bday 28032 df-slts 28174 df-cuts 28176 df-0s 28223 |
| This theorem is used by: 1no 28226 0lt1s 28228 bday1 28230 cuteq0 28231 cutneg 28232 cuteq1 28233 gt0ne0s 28234 made0 28279 right1s 28312 0elold 28326 addsrid 28380 addslid 28384 addsproplem2 28386 addsfo 28399 ltaddspos1d 28427 ltaddspos2d 28428 addsgt0d 28430 ltsp1d 28431 addsge01d 28432 neg0s 28442 neg1s 28443 negsproplem2 28445 negsproplem6 28449 negscl 28452 negsid 28457 negsdi 28466 lt0negs2d 28467 subsfo 28481 negsval2 28482 subsid1 28484 posdifsd 28514 ltsubsposd 28515 subsge0d 28516 muls01 28528 mulsrid 28529 mulsproplem2 28533 mulsproplem3 28534 mulsproplem4 28535 mulsproplem5 28536 mulsproplem6 28537 mulsproplem7 28538 mulsproplem8 28539 mulscl 28550 ltmuls 28552 lemulsd 28554 muls02 28557 mulsgt0 28560 mulsge0d 28562 ltmulnegs1d 28592 mulscan2d 28595 lemuls1ad 28598 ltmuls12ad 28599 muls0ord 28601 precsexlem8 28630 precsexlem9 28631 precsexlem11 28633 recsex 28635 abs0s 28658 abssnid 28659 absmuls 28660 abssge0 28661 absnegs 28663 leabss 28664 0ons 28672 peano5n0s 28735 n0ssno 28736 0n0s 28745 peano2n0s 28746 dfn0s2 28748 n0sind 28749 n0cut 28750 n0sge0 28754 nnsgt0 28755 elnns2 28757 nnsge1 28759 nnsrecgt0d 28767 seqn0sfn 28776 n0subs 28779 n0lts1e0 28784 eucliddivs 28792 elzs2 28815 elnnzs 28817 elznns 28818 twocut 28839 nohalf 28840 pw2recs 28854 pw2gt0divsd 28861 pw2ge0divsd 28862 pw2divsnegd 28865 pw2divs0d 28871 halfcut 28874 bdaypw2n0bndlem 28879 bdaypw2n0bnd 28880 bdayfinbndlem1 28883 z12bdaylem1 28886 z12bday 28901 bdayfin 28903 recut 28910 elreno2 28911 0reno 28912 1reno 28913 |
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