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| Mirrors > Home > MPE Home > Th. List > lrcut | Structured version Visualization version GIF version | ||
| Description: A surreal is equal to the cut of its left and right sets. (Contributed by Scott Fenton, 19-Aug-2024.) |
| Ref | Expression |
|---|---|
| lrcut | ⊢ (𝑋 ∈ No → (( L ‘𝑋) |s ( R ‘𝑋)) = 𝑋) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bdayon 27903 | . . . . 5 ⊢ ( bday ‘𝑋) ∈ On | |
| 2 | 1 | oneli 6465 | . . . 4 ⊢ (𝑏 ∈ ( bday ‘𝑋) → 𝑏 ∈ On) |
| 3 | madebday 28051 | . . . . 5 ⊢ ((𝑏 ∈ On ∧ 𝑦 ∈ No ) → (𝑦 ∈ ( M ‘𝑏) ↔ ( bday ‘𝑦) ⊆ 𝑏)) | |
| 4 | 3 | biimprd 251 | . . . 4 ⊢ ((𝑏 ∈ On ∧ 𝑦 ∈ No ) → (( bday ‘𝑦) ⊆ 𝑏 → 𝑦 ∈ ( M ‘𝑏))) |
| 5 | 2, 4 | sylan 591 | . . 3 ⊢ ((𝑏 ∈ ( bday ‘𝑋) ∧ 𝑦 ∈ No ) → (( bday ‘𝑦) ⊆ 𝑏 → 𝑦 ∈ ( M ‘𝑏))) |
| 6 | 5 | rgen2 3205 | . 2 ⊢ ∀𝑏 ∈ ( bday ‘𝑋)∀𝑦 ∈ No (( bday ‘𝑦) ⊆ 𝑏 → 𝑦 ∈ ( M ‘𝑏)) |
| 7 | madebdaylemlrcut 28050 | . 2 ⊢ ((∀𝑏 ∈ ( bday ‘𝑋)∀𝑦 ∈ No (( bday ‘𝑦) ⊆ 𝑏 → 𝑦 ∈ ( M ‘𝑏)) ∧ 𝑋 ∈ No ) → (( L ‘𝑋) |s ( R ‘𝑋)) = 𝑋) | |
| 8 | 6, 7 | mpan 702 | 1 ⊢ (𝑋 ∈ No → (( L ‘𝑋) |s ( R ‘𝑋)) = 𝑋) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1563 ∈ wcel 2145 ∀wral 3079 ⊆ wss 3907 Oncon0 6350 ‘cfv 6525 (class class class)co 7400 No csur 27762 bday cbday 27764 |s ccuts 27910 M cmade 27973 L cleft 27976 R cright 27977 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-rep 5232 ax-sep 5251 ax-nul 5261 ax-pow 5327 ax-pr 5395 ax-un 7722 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3080 df-rex 3090 df-rmo 3370 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-pss 3927 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-tp 4590 df-op 4592 df-uni 4869 df-int 4909 df-iun 4954 df-br 5106 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5547 df-eprel 5552 df-po 5560 df-so 5561 df-fr 5605 df-we 5607 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-res 5664 df-ima 5665 df-pred 6292 df-ord 6353 df-on 6354 df-suc 6356 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-1o 8441 df-2o 8442 df-no 27765 df-lts 27766 df-bday 27767 df-slts 27909 df-cuts 27911 df-made 27978 df-old 27979 df-left 27981 df-right 27982 |
| This theorem is referenced by: cutsfo 28056 ltsn0 28057 ltslpss 28059 leslss 28060 bdayiun 28066 cutpos 28084 cutminmax 28087 addsrid 28115 addsasslem1 28154 addsasslem2 28155 negsid 28192 mulsrid 28264 addsdilem1 28302 mulsasslem1 28314 mulsasslem2 28315 elons2 28409 oncutleft 28414 oncutlt 28415 onsbnd 28432 n0fincut 28506 halfcut 28609 elreno2 28646 |
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