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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 28441 | . 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 2145 (class class class)co 7418 No csur 27990 -s csubs 28399 |
| 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 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7749 |
| 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 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-se 5605 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6303 df-ord 6364 df-on 6365 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7375 df-ov 7421 df-oprab 7422 df-mpo 7423 df-1st 7999 df-2nd 8000 df-frecs 8292 df-wrecs 8323 df-recs 8372 df-1o 8469 df-2o 8470 df-nadd 8668 df-no 27993 df-lts 27994 df-bday 27995 df-slts 28137 df-cuts 28139 df-0s 28186 df-made 28206 df-old 28207 df-left 28209 df-right 28210 df-norec 28317 df-norec2 28328 df-adds 28339 df-negs 28400 df-subs 28401 |
| This theorem is used by: pncan3s 28452 ltsubsubsbd 28462 ltsubsubs2bd 28463 lesubsubsbd 28465 lesubsubs2bd 28466 lesubsubs3bd 28467 ltsubaddsd 28468 lesubaddsd 28472 subsubs2d 28474 lesubsd 28475 posdifsd 28477 subsge0d 28479 addsubs4d 28480 mulsproplem5 28499 mulsproplem6 28500 mulsproplem7 28501 mulsproplem8 28502 mulsproplem9 28503 mulsproplem12 28506 mulsproplem13 28507 mulsproplem14 28508 lemulsd 28517 sltmuls1 28526 sltmuls2 28527 mulsuniflem 28528 subsdid 28537 subsdird 28538 mulsasslem3 28544 mulsunif2lem 28548 ltmuls2 28550 precsexlem8 28593 precsexlem9 28594 precsexlem11 28596 onmulscl 28657 n0ltsp1le 28744 zmulscld 28776 zcuts 28786 zseo 28801 pw2cut2 28841 bdayfinbndlem1 28846 elreno2 28874 |
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