![]() |
Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > om2uzisoi | Structured version Visualization version GIF version |
Description: 𝐺 (see om2uz0i 13891) is an isomorphism from natural ordinals to upper integers. (Contributed by NM, 9-Oct-2008.) (Revised by Mario Carneiro, 13-Sep-2013.) |
Ref | Expression |
---|---|
om2uz.1 | ⊢ 𝐶 ∈ ℤ |
om2uz.2 | ⊢ 𝐺 = (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 𝐶) ↾ ω) |
Ref | Expression |
---|---|
om2uzisoi | ⊢ 𝐺 Isom E , < (ω, (ℤ≥‘𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | om2uz.1 | . . 3 ⊢ 𝐶 ∈ ℤ | |
2 | om2uz.2 | . . 3 ⊢ 𝐺 = (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 𝐶) ↾ ω) | |
3 | 1, 2 | om2uzf1oi 13897 | . 2 ⊢ 𝐺:ω–1-1-onto→(ℤ≥‘𝐶) |
4 | epel 5573 | . . . 4 ⊢ (𝑦 E 𝑧 ↔ 𝑦 ∈ 𝑧) | |
5 | 1, 2 | om2uzlt2i 13895 | . . . 4 ⊢ ((𝑦 ∈ ω ∧ 𝑧 ∈ ω) → (𝑦 ∈ 𝑧 ↔ (𝐺‘𝑦) < (𝐺‘𝑧))) |
6 | 4, 5 | bitrid 282 | . . 3 ⊢ ((𝑦 ∈ ω ∧ 𝑧 ∈ ω) → (𝑦 E 𝑧 ↔ (𝐺‘𝑦) < (𝐺‘𝑧))) |
7 | 6 | rgen2 3196 | . 2 ⊢ ∀𝑦 ∈ ω ∀𝑧 ∈ ω (𝑦 E 𝑧 ↔ (𝐺‘𝑦) < (𝐺‘𝑧)) |
8 | df-isom 6538 | . 2 ⊢ (𝐺 Isom E , < (ω, (ℤ≥‘𝐶)) ↔ (𝐺:ω–1-1-onto→(ℤ≥‘𝐶) ∧ ∀𝑦 ∈ ω ∀𝑧 ∈ ω (𝑦 E 𝑧 ↔ (𝐺‘𝑦) < (𝐺‘𝑧)))) | |
9 | 3, 7, 8 | mpbir2an 709 | 1 ⊢ 𝐺 Isom E , < (ω, (ℤ≥‘𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 205 ∧ wa 396 = wceq 1541 ∈ wcel 2106 ∀wral 3060 Vcvv 3470 class class class wbr 5138 ↦ cmpt 5221 E cep 5569 ↾ cres 5668 –1-1-onto→wf1o 6528 ‘cfv 6529 Isom wiso 6530 (class class class)co 7390 ωcom 7835 reccrdg 8388 1c1 11090 + caddc 11092 < clt 11227 ℤcz 12537 ℤ≥cuz 12801 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 ax-sep 5289 ax-nul 5296 ax-pow 5353 ax-pr 5417 ax-un 7705 ax-cnex 11145 ax-resscn 11146 ax-1cn 11147 ax-icn 11148 ax-addcl 11149 ax-addrcl 11150 ax-mulcl 11151 ax-mulrcl 11152 ax-mulcom 11153 ax-addass 11154 ax-mulass 11155 ax-distr 11156 ax-i2m1 11157 ax-1ne0 11158 ax-1rid 11159 ax-rnegex 11160 ax-rrecex 11161 ax-cnre 11162 ax-pre-lttri 11163 ax-pre-lttrn 11164 ax-pre-ltadd 11165 ax-pre-mulgt0 11166 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-reu 3376 df-rab 3430 df-v 3472 df-sbc 3771 df-csb 3887 df-dif 3944 df-un 3946 df-in 3948 df-ss 3958 df-pss 3960 df-nul 4316 df-if 4520 df-pw 4595 df-sn 4620 df-pr 4622 df-op 4626 df-uni 4899 df-iun 4989 df-br 5139 df-opab 5201 df-mpt 5222 df-tr 5256 df-id 5564 df-eprel 5570 df-po 5578 df-so 5579 df-fr 5621 df-we 5623 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-pred 6286 df-ord 6353 df-on 6354 df-lim 6355 df-suc 6356 df-iota 6481 df-fun 6531 df-fn 6532 df-f 6533 df-f1 6534 df-fo 6535 df-f1o 6536 df-fv 6537 df-isom 6538 df-riota 7346 df-ov 7393 df-oprab 7394 df-mpo 7395 df-om 7836 df-2nd 7955 df-frecs 8245 df-wrecs 8276 df-recs 8350 df-rdg 8389 df-er 8683 df-en 8920 df-dom 8921 df-sdom 8922 df-pnf 11229 df-mnf 11230 df-xr 11231 df-ltxr 11232 df-le 11233 df-sub 11425 df-neg 11426 df-nn 12192 df-n0 12452 df-z 12538 df-uz 12802 |
This theorem is referenced by: om2uzoi 13899 ltweuz 13905 fz1isolem 14401 |
Copyright terms: Public domain | W3C validator |