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| Mirrors > Home > MPE Home > Th. List > n0ssold | Structured version Visualization version GIF version | ||
| Description: The non-negative surreal integers are a subset of the old set of ω. (Contributed by Scott Fenton, 18-Apr-2025.) |
| Ref | Expression |
|---|---|
| n0ssold | ⊢ ℕ0s ⊆ ( O ‘ω) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | n0sbday 28271 | . . 3 ⊢ (𝑛 ∈ ℕ0s → ( bday ‘𝑛) ∈ ω) | |
| 2 | omelon 9658 | . . . 4 ⊢ ω ∈ On | |
| 3 | n0sno 28245 | . . . 4 ⊢ (𝑛 ∈ ℕ0s → 𝑛 ∈ No ) | |
| 4 | oldbday 27856 | . . . 4 ⊢ ((ω ∈ On ∧ 𝑛 ∈ No ) → (𝑛 ∈ ( O ‘ω) ↔ ( bday ‘𝑛) ∈ ω)) | |
| 5 | 2, 3, 4 | sylancr 587 | . . 3 ⊢ (𝑛 ∈ ℕ0s → (𝑛 ∈ ( O ‘ω) ↔ ( bday ‘𝑛) ∈ ω)) |
| 6 | 1, 5 | mpbird 257 | . 2 ⊢ (𝑛 ∈ ℕ0s → 𝑛 ∈ ( O ‘ω)) |
| 7 | 6 | ssriv 3962 | 1 ⊢ ℕ0s ⊆ ( O ‘ω) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∈ wcel 2108 ⊆ wss 3926 Oncon0 6352 ‘cfv 6530 ωcom 7859 No csur 27601 bday cbday 27603 O cold 27799 ℕ0scnn0s 28235 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2707 ax-rep 5249 ax-sep 5266 ax-nul 5276 ax-pow 5335 ax-pr 5402 ax-un 7727 ax-inf2 9653 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2065 df-mo 2539 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2809 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3061 df-rmo 3359 df-reu 3360 df-rab 3416 df-v 3461 df-sbc 3766 df-csb 3875 df-dif 3929 df-un 3931 df-in 3933 df-ss 3943 df-pss 3946 df-nul 4309 df-if 4501 df-pw 4577 df-sn 4602 df-pr 4604 df-tp 4606 df-op 4608 df-ot 4610 df-uni 4884 df-int 4923 df-iun 4969 df-br 5120 df-opab 5182 df-mpt 5202 df-tr 5230 df-id 5548 df-eprel 5553 df-po 5561 df-so 5562 df-fr 5606 df-se 5607 df-we 5608 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-pred 6290 df-ord 6355 df-on 6356 df-lim 6357 df-suc 6358 df-iota 6483 df-fun 6532 df-fn 6533 df-f 6534 df-f1 6535 df-fo 6536 df-f1o 6537 df-fv 6538 df-riota 7360 df-ov 7406 df-oprab 7407 df-mpo 7408 df-om 7860 df-1st 7986 df-2nd 7987 df-frecs 8278 df-wrecs 8309 df-recs 8383 df-rdg 8422 df-1o 8478 df-2o 8479 df-nadd 8676 df-no 27604 df-slt 27605 df-bday 27606 df-sle 27707 df-sslt 27743 df-scut 27745 df-0s 27786 df-1s 27787 df-made 27803 df-old 27804 df-left 27806 df-right 27807 df-norec 27888 df-norec2 27899 df-adds 27910 df-negs 27970 df-subs 27971 df-n0s 28237 |
| This theorem is referenced by: (None) |
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