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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 28142 | . 2 ⊢ ((𝐴 ∈ No ∧ 𝐵 ∈ No ) → (𝐴 -s 𝐵) ∈ No ) | |
| 4 | 1, 2, 3 | syl2anc 593 | 1 ⊢ (𝜑 → (𝐴 -s 𝐵) ∈ No ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2141 (class class class)co 7390 No csur 27691 -s csubs 28100 |
| 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-rep 5224 ax-sep 5243 ax-nul 5253 ax-pow 5319 ax-pr 5387 ax-un 7712 |
| 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-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-tp 4584 df-op 4586 df-uni 4863 df-int 4903 df-iun 4948 df-br 5098 df-opab 5160 df-mpt 5179 df-tr 5205 df-id 5538 df-eprel 5543 df-po 5551 df-so 5552 df-fr 5596 df-se 5597 df-we 5598 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-pred 6282 df-ord 6343 df-on 6344 df-suc 6346 df-iota 6471 df-fun 6517 df-fn 6518 df-f 6519 df-f1 6520 df-fo 6521 df-f1o 6522 df-fv 6523 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-1st 7964 df-2nd 7965 df-frecs 8255 df-wrecs 8286 df-recs 8335 df-1o 8430 df-2o 8431 df-nadd 8629 df-no 27694 df-lts 27695 df-bday 27696 df-slts 27838 df-cuts 27840 df-0s 27887 df-made 27907 df-old 27908 df-left 27910 df-right 27911 df-norec 28018 df-norec2 28029 df-adds 28040 df-negs 28101 df-subs 28102 |
| This theorem is referenced by: pncan3s 28153 ltsubsubsbd 28163 ltsubsubs2bd 28164 lesubsubsbd 28166 lesubsubs2bd 28167 lesubsubs3bd 28168 ltsubaddsd 28169 lesubaddsd 28173 subsubs2d 28175 lesubsd 28176 posdifsd 28178 subsge0d 28180 addsubs4d 28181 mulsproplem5 28200 mulsproplem6 28201 mulsproplem7 28202 mulsproplem8 28203 mulsproplem9 28204 mulsproplem12 28207 mulsproplem13 28208 mulsproplem14 28209 lemulsd 28218 sltmuls1 28227 sltmuls2 28228 mulsuniflem 28229 subsdid 28238 subsdird 28239 mulsasslem3 28245 mulsunif2lem 28249 ltmuls2 28251 precsexlem8 28294 precsexlem9 28295 precsexlem11 28297 onmulscl 28358 n0ltsp1le 28445 zmulscld 28477 zcuts 28487 zseo 28502 pw2cut2 28542 bdayfinbndlem1 28547 elreno2 28575 |
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