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| Mirrors > Home > MPE Home > Th. List > subscld | Structured version Visualization version GIF version | ||
| Description: Closure law for surreal subtraction. (Contributed by Scott Fenton, 5-Feb-2025.) |
| Ref | Expression |
|---|---|
| subscld.1 | ⊢ (𝜑 → 𝐴 ∈ No ) |
| subscld.2 | ⊢ (𝜑 → 𝐵 ∈ No ) |
| Ref | Expression |
|---|---|
| subscld | ⊢ (𝜑 → (𝐴 -s 𝐵) ∈ No ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | subscld.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ No ) | |
| 2 | subscld.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ No ) | |
| 3 | subscl 28284 | . 2 ⊢ ((𝐴 ∈ No ∧ 𝐵 ∈ No ) → (𝐴 -s 𝐵) ∈ No ) | |
| 4 | 1, 2, 3 | syl2anc 596 | 1 ⊢ (𝜑 → (𝐴 -s 𝐵) ∈ No ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2146 (class class class)co 7416 No csur 27833 -s csubs 28242 |
| 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-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7738 |
| 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 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3082 df-rex 3092 df-rmo 3371 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-tp 4596 df-op 4598 df-uni 4875 df-int 4915 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-se 5617 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6306 df-ord 6367 df-on 6368 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-1st 7988 df-2nd 7989 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-1o 8455 df-2o 8456 df-nadd 8654 df-no 27836 df-lts 27837 df-bday 27838 df-slts 27980 df-cuts 27982 df-0s 28029 df-made 28049 df-old 28050 df-left 28052 df-right 28053 df-norec 28160 df-norec2 28171 df-adds 28182 df-negs 28243 df-subs 28244 |
| This theorem is used by: pncan3s 28295 ltsubsubsbd 28305 ltsubsubs2bd 28306 lesubsubsbd 28308 lesubsubs2bd 28309 lesubsubs3bd 28310 ltsubaddsd 28311 lesubaddsd 28315 subsubs2d 28317 lesubsd 28318 posdifsd 28320 subsge0d 28322 addsubs4d 28323 mulsproplem5 28342 mulsproplem6 28343 mulsproplem7 28344 mulsproplem8 28345 mulsproplem9 28346 mulsproplem12 28349 mulsproplem13 28350 mulsproplem14 28351 lemulsd 28360 sltmuls1 28369 sltmuls2 28370 mulsuniflem 28371 subsdid 28380 subsdird 28381 mulsasslem3 28387 mulsunif2lem 28391 ltmuls2 28393 precsexlem8 28436 precsexlem9 28437 precsexlem11 28439 onmulscl 28500 n0ltsp1le 28587 zmulscld 28619 zcuts 28629 zseo 28644 pw2cut2 28684 bdayfinbndlem1 28689 elreno2 28717 |
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