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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 28313 | . 2 ⊢ (𝜑 → 𝐺:ω–1-1-onto→𝑍) |
| 5 | epel 5531 | . . . 4 ⊢ (𝑦 E 𝑧 ↔ 𝑦 ∈ 𝑧) | |
| 6 | 1, 2, 3 | om2noseqlt2 28312 | . . . 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 6505 | . 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 3430 class class class wbr 5086 ↦ cmpt 5167 E cep 5527 ↾ cres 5630 “ cima 5631 –1-1-onto→wf1o 6495 ‘cfv 6496 Isom wiso 6497 (class class class)co 7364 ωcom 7814 reccrdg 8345 No csur 27623 <s clts 27624 1s c1s 27818 +s cadds 27971 |
| 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 5213 ax-sep 5232 ax-nul 5242 ax-pow 5306 ax-pr 5374 ax-un 7686 |
| 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 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-tp 4573 df-op 4575 df-ot 4577 df-uni 4852 df-int 4891 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5523 df-eprel 5528 df-po 5536 df-so 5537 df-fr 5581 df-se 5582 df-we 5583 df-xp 5634 df-rel 5635 df-cnv 5636 df-co 5637 df-dm 5638 df-rn 5639 df-res 5640 df-ima 5641 df-pred 6263 df-ord 6324 df-on 6325 df-lim 6326 df-suc 6327 df-iota 6452 df-fun 6498 df-fn 6499 df-f 6500 df-f1 6501 df-fo 6502 df-f1o 6503 df-fv 6504 df-isom 6505 df-riota 7321 df-ov 7367 df-oprab 7368 df-mpo 7369 df-om 7815 df-1st 7939 df-2nd 7940 df-frecs 8228 df-wrecs 8259 df-recs 8308 df-rdg 8346 df-1o 8402 df-2o 8403 df-oadd 8406 df-nadd 8599 df-no 27626 df-lts 27627 df-bday 27628 df-les 27729 df-slts 27770 df-cuts 27772 df-0s 27819 df-1s 27820 df-made 27839 df-old 27840 df-left 27842 df-right 27843 df-norec2 27961 df-adds 27972 |
| This theorem is referenced by: om2noseqoi 28315 |
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