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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 28236 | . 2 ⊢ ((𝐴 ∈ No ∧ 𝐵 ∈ No ) → (𝐴 -s 𝐵) ∈ No ) | |
| 4 | 1, 2, 3 | syl2anc 595 | 1 ⊢ (𝜑 → (𝐴 -s 𝐵) ∈ No ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2143 (class class class)co 7412 No csur 27785 -s csubs 28194 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-rep 5239 ax-sep 5258 ax-nul 5270 ax-pow 5338 ax-pr 5406 ax-un 7734 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3746 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-tp 4595 df-op 4597 df-uni 4874 df-int 4914 df-iun 4959 df-br 5111 df-opab 5175 df-mpt 5194 df-tr 5220 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 6304 df-ord 6365 df-on 6366 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-1st 7987 df-2nd 7988 df-frecs 8279 df-wrecs 8310 df-recs 8359 df-1o 8454 df-2o 8455 df-nadd 8653 df-no 27788 df-lts 27789 df-bday 27790 df-slts 27932 df-cuts 27934 df-0s 27981 df-made 28001 df-old 28002 df-left 28004 df-right 28005 df-norec 28112 df-norec2 28123 df-adds 28134 df-negs 28195 df-subs 28196 |
| This theorem is referenced by: pncan3s 28247 ltsubsubsbd 28257 ltsubsubs2bd 28258 lesubsubsbd 28260 lesubsubs2bd 28261 lesubsubs3bd 28262 ltsubaddsd 28263 lesubaddsd 28267 subsubs2d 28269 lesubsd 28270 posdifsd 28272 subsge0d 28274 addsubs4d 28275 mulsproplem5 28294 mulsproplem6 28295 mulsproplem7 28296 mulsproplem8 28297 mulsproplem9 28298 mulsproplem12 28301 mulsproplem13 28302 mulsproplem14 28303 lemulsd 28312 sltmuls1 28321 sltmuls2 28322 mulsuniflem 28323 subsdid 28332 subsdird 28333 mulsasslem3 28339 mulsunif2lem 28343 ltmuls2 28345 precsexlem8 28388 precsexlem9 28389 precsexlem11 28391 onmulscl 28452 n0ltsp1le 28539 zmulscld 28571 zcuts 28581 zseo 28596 pw2cut2 28636 bdayfinbndlem1 28641 elreno2 28669 |
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