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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 28066 | . 2 ⊢ ((𝐴 ∈ No ∧ 𝐵 ∈ No ) → (𝐴 -s 𝐵) ∈ No ) | |
| 4 | 1, 2, 3 | syl2anc 585 | 1 ⊢ (𝜑 → (𝐴 -s 𝐵) ∈ No ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 (class class class)co 7358 No csur 27615 -s csubs 28024 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5300 ax-pr 5368 ax-un 7680 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-tp 4573 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5517 df-eprel 5522 df-po 5530 df-so 5531 df-fr 5575 df-se 5576 df-we 5577 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-res 5634 df-ima 5635 df-pred 6257 df-ord 6318 df-on 6319 df-suc 6321 df-iota 6446 df-fun 6492 df-fn 6493 df-f 6494 df-f1 6495 df-fo 6496 df-f1o 6497 df-fv 6498 df-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-1st 7933 df-2nd 7934 df-frecs 8222 df-wrecs 8253 df-recs 8302 df-1o 8396 df-2o 8397 df-nadd 8593 df-no 27618 df-lts 27619 df-bday 27620 df-slts 27762 df-cuts 27764 df-0s 27811 df-made 27831 df-old 27832 df-left 27834 df-right 27835 df-norec 27942 df-norec2 27953 df-adds 27964 df-negs 28025 df-subs 28026 |
| This theorem is referenced by: pncan3s 28077 ltsubsubsbd 28087 ltsubsubs2bd 28088 lesubsubsbd 28090 lesubsubs2bd 28091 lesubsubs3bd 28092 ltsubaddsd 28093 lesubaddsd 28097 subsubs2d 28099 lesubsd 28100 posdifsd 28102 subsge0d 28104 addsubs4d 28105 mulsproplem5 28124 mulsproplem6 28125 mulsproplem7 28126 mulsproplem8 28127 mulsproplem9 28128 mulsproplem12 28131 mulsproplem13 28132 mulsproplem14 28133 lemulsd 28142 sltmuls1 28151 sltmuls2 28152 mulsuniflem 28153 subsdid 28162 subsdird 28163 mulsasslem3 28169 mulsunif2lem 28173 ltmuls2 28175 precsexlem8 28218 precsexlem9 28219 precsexlem11 28221 onmulscl 28282 n0ltsp1le 28369 zmulscld 28401 zcuts 28411 zseo 28426 pw2cut2 28466 bdayfinbndlem1 28471 elreno2 28499 |
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