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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 27760 | . . . . 5 ⊢ ( bday ‘𝑋) ∈ On | |
| 2 | 1 | oneli 6440 | . . . 4 ⊢ (𝑏 ∈ ( bday ‘𝑋) → 𝑏 ∈ On) |
| 3 | madebday 27908 | . . . . 5 ⊢ ((𝑏 ∈ On ∧ 𝑦 ∈ No ) → (𝑦 ∈ ( M ‘𝑏) ↔ ( bday ‘𝑦) ⊆ 𝑏)) | |
| 4 | 3 | biimprd 248 | . . . 4 ⊢ ((𝑏 ∈ On ∧ 𝑦 ∈ No ) → (( bday ‘𝑦) ⊆ 𝑏 → 𝑦 ∈ ( M ‘𝑏))) |
| 5 | 2, 4 | sylan 581 | . . 3 ⊢ ((𝑏 ∈ ( bday ‘𝑋) ∧ 𝑦 ∈ No ) → (( bday ‘𝑦) ⊆ 𝑏 → 𝑦 ∈ ( M ‘𝑏))) |
| 6 | 5 | rgen2 3178 | . 2 ⊢ ∀𝑏 ∈ ( bday ‘𝑋)∀𝑦 ∈ No (( bday ‘𝑦) ⊆ 𝑏 → 𝑦 ∈ ( M ‘𝑏)) |
| 7 | madebdaylemlrcut 27907 | . 2 ⊢ ((∀𝑏 ∈ ( bday ‘𝑋)∀𝑦 ∈ No (( bday ‘𝑦) ⊆ 𝑏 → 𝑦 ∈ ( M ‘𝑏)) ∧ 𝑋 ∈ No ) → (( L ‘𝑋) |s ( R ‘𝑋)) = 𝑋) | |
| 8 | 6, 7 | mpan 691 | 1 ⊢ (𝑋 ∈ No → (( L ‘𝑋) |s ( R ‘𝑋)) = 𝑋) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∀wral 3052 ⊆ wss 3903 Oncon0 6325 ‘cfv 6500 (class class class)co 7368 No csur 27619 bday cbday 27621 |s ccuts 27767 M cmade 27830 L cleft 27833 R cright 27834 |
| 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 5226 ax-sep 5243 ax-nul 5253 ax-pow 5312 ax-pr 5379 ax-un 7690 |
| 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 3352 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-tp 4587 df-op 4589 df-uni 4866 df-int 4905 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5527 df-eprel 5532 df-po 5540 df-so 5541 df-fr 5585 df-we 5587 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-pred 6267 df-ord 6328 df-on 6329 df-suc 6331 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-riota 7325 df-ov 7371 df-oprab 7372 df-mpo 7373 df-2nd 7944 df-frecs 8233 df-wrecs 8264 df-recs 8313 df-1o 8407 df-2o 8408 df-no 27622 df-lts 27623 df-bday 27624 df-slts 27766 df-cuts 27768 df-made 27835 df-old 27836 df-left 27838 df-right 27839 |
| This theorem is referenced by: cutsfo 27913 ltsn0 27914 ltslpss 27916 leslss 27917 bdayiun 27923 cutpos 27941 cutminmax 27944 addsrid 27972 addsasslem1 28011 addsasslem2 28012 negsid 28049 mulsrid 28121 addsdilem1 28159 mulsasslem1 28171 mulsasslem2 28172 elons2 28266 oncutleft 28271 oncutlt 28272 onsbnd 28289 n0fincut 28363 halfcut 28466 elreno2 28503 |
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