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| Mirrors > Home > MPE Home > Th. List > om2noseqiso | Structured version Visualization version GIF version | ||
| Description: 𝐺 is an isomorphism from the finite ordinals to a surreal sequence. (Contributed by Scott Fenton, 18-Apr-2025.) |
| Ref | Expression |
|---|---|
| om2noseq.1 | ⊢ (𝜑 → 𝐶 ∈ No ) |
| om2noseq.2 | ⊢ (𝜑 → 𝐺 = (rec((𝑥 ∈ V ↦ (𝑥 +s 1s )), 𝐶) ↾ ω)) |
| om2noseq.3 | ⊢ (𝜑 → 𝑍 = (rec((𝑥 ∈ V ↦ (𝑥 +s 1s )), 𝐶) “ ω)) |
| Ref | Expression |
|---|---|
| om2noseqiso | ⊢ (𝜑 → 𝐺 Isom E , <s (ω, 𝑍)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | om2noseq.1 | . . 3 ⊢ (𝜑 → 𝐶 ∈ No ) | |
| 2 | om2noseq.2 | . . 3 ⊢ (𝜑 → 𝐺 = (rec((𝑥 ∈ V ↦ (𝑥 +s 1s )), 𝐶) ↾ ω)) | |
| 3 | om2noseq.3 | . . 3 ⊢ (𝜑 → 𝑍 = (rec((𝑥 ∈ V ↦ (𝑥 +s 1s )), 𝐶) “ ω)) | |
| 4 | 1, 2, 3 | om2noseqf1o 28314 | . 2 ⊢ (𝜑 → 𝐺:ω–1-1-onto→𝑍) |
| 5 | epel 5537 | . . . 4 ⊢ (𝑦 E 𝑧 ↔ 𝑦 ∈ 𝑧) | |
| 6 | 1, 2, 3 | om2noseqlt2 28313 | . . . 4 ⊢ ((𝜑 ∧ (𝑦 ∈ ω ∧ 𝑧 ∈ ω)) → (𝑦 ∈ 𝑧 ↔ (𝐺‘𝑦) <s (𝐺‘𝑧))) |
| 7 | 5, 6 | bitrid 283 | . . 3 ⊢ ((𝜑 ∧ (𝑦 ∈ ω ∧ 𝑧 ∈ ω)) → (𝑦 E 𝑧 ↔ (𝐺‘𝑦) <s (𝐺‘𝑧))) |
| 8 | 7 | ralrimivva 3181 | . 2 ⊢ (𝜑 → ∀𝑦 ∈ ω ∀𝑧 ∈ ω (𝑦 E 𝑧 ↔ (𝐺‘𝑦) <s (𝐺‘𝑧))) |
| 9 | df-isom 6511 | . 2 ⊢ (𝐺 Isom E , <s (ω, 𝑍) ↔ (𝐺:ω–1-1-onto→𝑍 ∧ ∀𝑦 ∈ ω ∀𝑧 ∈ ω (𝑦 E 𝑧 ↔ (𝐺‘𝑦) <s (𝐺‘𝑧)))) | |
| 10 | 4, 8, 9 | sylanbrc 584 | 1 ⊢ (𝜑 → 𝐺 Isom E , <s (ω, 𝑍)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∀wral 3052 Vcvv 3442 class class class wbr 5100 ↦ cmpt 5181 E cep 5533 ↾ cres 5636 “ cima 5637 –1-1-onto→wf1o 6501 ‘cfv 6502 Isom wiso 6503 (class class class)co 7370 ωcom 7820 reccrdg 8352 No csur 27624 <s clts 27625 1s c1s 27819 +s cadds 27972 |
| 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 5245 ax-nul 5255 ax-pow 5314 ax-pr 5381 ax-un 7692 |
| 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-ot 4591 df-uni 4866 df-int 4905 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5529 df-eprel 5534 df-po 5542 df-so 5543 df-fr 5587 df-se 5588 df-we 5589 df-xp 5640 df-rel 5641 df-cnv 5642 df-co 5643 df-dm 5644 df-rn 5645 df-res 5646 df-ima 5647 df-pred 6269 df-ord 6330 df-on 6331 df-lim 6332 df-suc 6333 df-iota 6458 df-fun 6504 df-fn 6505 df-f 6506 df-f1 6507 df-fo 6508 df-f1o 6509 df-fv 6510 df-isom 6511 df-riota 7327 df-ov 7373 df-oprab 7374 df-mpo 7375 df-om 7821 df-1st 7945 df-2nd 7946 df-frecs 8235 df-wrecs 8266 df-recs 8315 df-rdg 8353 df-1o 8409 df-2o 8410 df-oadd 8413 df-nadd 8606 df-no 27627 df-lts 27628 df-bday 27629 df-les 27730 df-slts 27771 df-cuts 27773 df-0s 27820 df-1s 27821 df-made 27840 df-old 27841 df-left 27843 df-right 27844 df-norec2 27962 df-adds 27973 |
| This theorem is referenced by: om2noseqoi 28316 |
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