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Mirrors > Home > MPE Home > Th. List > om2uzrani | Structured version Visualization version GIF version |
Description: Range of 𝐺 (see om2uz0i 13665). (Contributed by NM, 3-Oct-2004.) (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 |
---|---|
om2uzrani | ⊢ ran 𝐺 = (ℤ≥‘𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | frfnom 8257 | . . . . . 6 ⊢ (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 𝐶) ↾ ω) Fn ω | |
2 | om2uz.2 | . . . . . . 7 ⊢ 𝐺 = (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 𝐶) ↾ ω) | |
3 | 2 | fneq1i 6528 | . . . . . 6 ⊢ (𝐺 Fn ω ↔ (rec((𝑥 ∈ V ↦ (𝑥 + 1)), 𝐶) ↾ ω) Fn ω) |
4 | 1, 3 | mpbir 230 | . . . . 5 ⊢ 𝐺 Fn ω |
5 | fvelrnb 6827 | . . . . 5 ⊢ (𝐺 Fn ω → (𝑦 ∈ ran 𝐺 ↔ ∃𝑧 ∈ ω (𝐺‘𝑧) = 𝑦)) | |
6 | 4, 5 | ax-mp 5 | . . . 4 ⊢ (𝑦 ∈ ran 𝐺 ↔ ∃𝑧 ∈ ω (𝐺‘𝑧) = 𝑦) |
7 | om2uz.1 | . . . . . . 7 ⊢ 𝐶 ∈ ℤ | |
8 | 7, 2 | om2uzuzi 13667 | . . . . . 6 ⊢ (𝑧 ∈ ω → (𝐺‘𝑧) ∈ (ℤ≥‘𝐶)) |
9 | eleq1 2828 | . . . . . 6 ⊢ ((𝐺‘𝑧) = 𝑦 → ((𝐺‘𝑧) ∈ (ℤ≥‘𝐶) ↔ 𝑦 ∈ (ℤ≥‘𝐶))) | |
10 | 8, 9 | syl5ibcom 244 | . . . . 5 ⊢ (𝑧 ∈ ω → ((𝐺‘𝑧) = 𝑦 → 𝑦 ∈ (ℤ≥‘𝐶))) |
11 | 10 | rexlimiv 3211 | . . . 4 ⊢ (∃𝑧 ∈ ω (𝐺‘𝑧) = 𝑦 → 𝑦 ∈ (ℤ≥‘𝐶)) |
12 | 6, 11 | sylbi 216 | . . 3 ⊢ (𝑦 ∈ ran 𝐺 → 𝑦 ∈ (ℤ≥‘𝐶)) |
13 | eleq1 2828 | . . . 4 ⊢ (𝑧 = 𝐶 → (𝑧 ∈ ran 𝐺 ↔ 𝐶 ∈ ran 𝐺)) | |
14 | eleq1 2828 | . . . 4 ⊢ (𝑧 = 𝑦 → (𝑧 ∈ ran 𝐺 ↔ 𝑦 ∈ ran 𝐺)) | |
15 | eleq1 2828 | . . . 4 ⊢ (𝑧 = (𝑦 + 1) → (𝑧 ∈ ran 𝐺 ↔ (𝑦 + 1) ∈ ran 𝐺)) | |
16 | 7, 2 | om2uz0i 13665 | . . . . 5 ⊢ (𝐺‘∅) = 𝐶 |
17 | peano1 7729 | . . . . . 6 ⊢ ∅ ∈ ω | |
18 | fnfvelrn 6955 | . . . . . 6 ⊢ ((𝐺 Fn ω ∧ ∅ ∈ ω) → (𝐺‘∅) ∈ ran 𝐺) | |
19 | 4, 17, 18 | mp2an 689 | . . . . 5 ⊢ (𝐺‘∅) ∈ ran 𝐺 |
20 | 16, 19 | eqeltrri 2838 | . . . 4 ⊢ 𝐶 ∈ ran 𝐺 |
21 | 7, 2 | om2uzsuci 13666 | . . . . . . . . 9 ⊢ (𝑧 ∈ ω → (𝐺‘suc 𝑧) = ((𝐺‘𝑧) + 1)) |
22 | oveq1 7278 | . . . . . . . . 9 ⊢ ((𝐺‘𝑧) = 𝑦 → ((𝐺‘𝑧) + 1) = (𝑦 + 1)) | |
23 | 21, 22 | sylan9eq 2800 | . . . . . . . 8 ⊢ ((𝑧 ∈ ω ∧ (𝐺‘𝑧) = 𝑦) → (𝐺‘suc 𝑧) = (𝑦 + 1)) |
24 | peano2 7731 | . . . . . . . . . 10 ⊢ (𝑧 ∈ ω → suc 𝑧 ∈ ω) | |
25 | fnfvelrn 6955 | . . . . . . . . . 10 ⊢ ((𝐺 Fn ω ∧ suc 𝑧 ∈ ω) → (𝐺‘suc 𝑧) ∈ ran 𝐺) | |
26 | 4, 24, 25 | sylancr 587 | . . . . . . . . 9 ⊢ (𝑧 ∈ ω → (𝐺‘suc 𝑧) ∈ ran 𝐺) |
27 | 26 | adantr 481 | . . . . . . . 8 ⊢ ((𝑧 ∈ ω ∧ (𝐺‘𝑧) = 𝑦) → (𝐺‘suc 𝑧) ∈ ran 𝐺) |
28 | 23, 27 | eqeltrrd 2842 | . . . . . . 7 ⊢ ((𝑧 ∈ ω ∧ (𝐺‘𝑧) = 𝑦) → (𝑦 + 1) ∈ ran 𝐺) |
29 | 28 | rexlimiva 3212 | . . . . . 6 ⊢ (∃𝑧 ∈ ω (𝐺‘𝑧) = 𝑦 → (𝑦 + 1) ∈ ran 𝐺) |
30 | 6, 29 | sylbi 216 | . . . . 5 ⊢ (𝑦 ∈ ran 𝐺 → (𝑦 + 1) ∈ ran 𝐺) |
31 | 30 | a1i 11 | . . . 4 ⊢ (𝑦 ∈ (ℤ≥‘𝐶) → (𝑦 ∈ ran 𝐺 → (𝑦 + 1) ∈ ran 𝐺)) |
32 | 13, 14, 15, 14, 20, 31 | uzind4i 12649 | . . 3 ⊢ (𝑦 ∈ (ℤ≥‘𝐶) → 𝑦 ∈ ran 𝐺) |
33 | 12, 32 | impbii 208 | . 2 ⊢ (𝑦 ∈ ran 𝐺 ↔ 𝑦 ∈ (ℤ≥‘𝐶)) |
34 | 33 | eqriv 2737 | 1 ⊢ ran 𝐺 = (ℤ≥‘𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 = wceq 1542 ∈ wcel 2110 ∃wrex 3067 Vcvv 3431 ∅c0 4262 ↦ cmpt 5162 ran crn 5591 ↾ cres 5592 suc csuc 6267 Fn wfn 6427 ‘cfv 6432 (class class class)co 7271 ωcom 7706 reccrdg 8231 1c1 10873 + caddc 10875 ℤcz 12319 ℤ≥cuz 12581 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2015 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2711 ax-sep 5227 ax-nul 5234 ax-pow 5292 ax-pr 5356 ax-un 7582 ax-cnex 10928 ax-resscn 10929 ax-1cn 10930 ax-icn 10931 ax-addcl 10932 ax-addrcl 10933 ax-mulcl 10934 ax-mulrcl 10935 ax-mulcom 10936 ax-addass 10937 ax-mulass 10938 ax-distr 10939 ax-i2m1 10940 ax-1ne0 10941 ax-1rid 10942 ax-rnegex 10943 ax-rrecex 10944 ax-cnre 10945 ax-pre-lttri 10946 ax-pre-lttrn 10947 ax-pre-ltadd 10948 ax-pre-mulgt0 10949 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2072 df-mo 2542 df-eu 2571 df-clab 2718 df-cleq 2732 df-clel 2818 df-nfc 2891 df-ne 2946 df-nel 3052 df-ral 3071 df-rex 3072 df-reu 3073 df-rab 3075 df-v 3433 df-sbc 3721 df-csb 3838 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-pss 3911 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4846 df-iun 4932 df-br 5080 df-opab 5142 df-mpt 5163 df-tr 5197 df-id 5490 df-eprel 5496 df-po 5504 df-so 5505 df-fr 5545 df-we 5547 df-xp 5596 df-rel 5597 df-cnv 5598 df-co 5599 df-dm 5600 df-rn 5601 df-res 5602 df-ima 5603 df-pred 6201 df-ord 6268 df-on 6269 df-lim 6270 df-suc 6271 df-iota 6390 df-fun 6434 df-fn 6435 df-f 6436 df-f1 6437 df-fo 6438 df-f1o 6439 df-fv 6440 df-riota 7228 df-ov 7274 df-oprab 7275 df-mpo 7276 df-om 7707 df-2nd 7825 df-frecs 8088 df-wrecs 8119 df-recs 8193 df-rdg 8232 df-er 8481 df-en 8717 df-dom 8718 df-sdom 8719 df-pnf 11012 df-mnf 11013 df-xr 11014 df-ltxr 11015 df-le 11016 df-sub 11207 df-neg 11208 df-nn 11974 df-n0 12234 df-z 12320 df-uz 12582 |
This theorem is referenced by: om2uzf1oi 13671 |
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