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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 28470 | . 2 ⊢ (𝜑 → 𝐺:ω–1-1-onto→𝑍) |
| 5 | epel 5564 | . . . 4 ⊢ (𝑦 E 𝑧 ↔ 𝑦 ∈ 𝑧) | |
| 6 | 1, 2, 3 | om2noseqlt2 28469 | . . . 4 ⊢ ((𝜑 ∧ (𝑦 ∈ ω ∧ 𝑧 ∈ ω)) → (𝑦 ∈ 𝑧 ↔ (𝐺‘𝑦) <s (𝐺‘𝑧))) |
| 7 | 5, 6 | bitrid 286 | . . 3 ⊢ ((𝜑 ∧ (𝑦 ∈ ω ∧ 𝑧 ∈ ω)) → (𝑦 E 𝑧 ↔ (𝐺‘𝑦) <s (𝐺‘𝑧))) |
| 8 | 7 | ralrimivva 3206 | . 2 ⊢ (𝜑 → ∀𝑦 ∈ ω ∀𝑧 ∈ ω (𝑦 E 𝑧 ↔ (𝐺‘𝑦) <s (𝐺‘𝑧))) |
| 9 | df-isom 6545 | . 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 594 | 1 ⊢ (𝜑 → 𝐺 Isom E , <s (ω, 𝑍)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1568 ∈ wcel 2141 ∀wral 3077 Vcvv 3453 class class class wbr 5108 ↦ cmpt 5191 E cep 5560 ↾ cres 5663 “ cima 5664 –1-1-onto→wf1o 6535 ‘cfv 6536 Isom wiso 6537 (class class class)co 7410 ωcom 7861 reccrdg 8395 No csur 27780 <s clts 27781 1s c1s 27975 +s cadds 28128 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5237 ax-sep 5256 ax-nul 5268 ax-pow 5336 ax-pr 5404 ax-un 7732 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2095 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3744 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-tp 4593 df-op 4595 df-ot 4597 df-uni 4872 df-int 4912 df-iun 4957 df-br 5109 df-opab 5173 df-mpt 5192 df-tr 5218 df-id 5556 df-eprel 5561 df-po 5569 df-so 5570 df-fr 5614 df-se 5615 df-we 5616 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-pred 6302 df-ord 6363 df-on 6364 df-lim 6365 df-suc 6366 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-isom 6545 df-riota 7367 df-ov 7413 df-oprab 7414 df-mpo 7415 df-om 7862 df-1st 7985 df-2nd 7986 df-frecs 8277 df-wrecs 8308 df-recs 8357 df-rdg 8396 df-1o 8452 df-2o 8453 df-oadd 8456 df-nadd 8651 df-no 27783 df-lts 27784 df-bday 27785 df-les 27885 df-slts 27927 df-cuts 27929 df-0s 27976 df-1s 27977 df-made 27996 df-old 27997 df-left 27999 df-right 28000 df-norec2 28118 df-adds 28129 |
| This theorem is referenced by: om2noseqoi 28472 |
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