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Mirrors > Home > MPE Home > Th. List > frsuc | Structured version Visualization version GIF version |
Description: The successor value resulting from finite recursive definition generation. (Contributed by NM, 15-Oct-1996.) (Revised by Mario Carneiro, 16-Nov-2014.) |
Ref | Expression |
---|---|
frsuc | ⊢ (𝐵 ∈ ω → ((rec(𝐹, 𝐴) ↾ ω)‘suc 𝐵) = (𝐹‘((rec(𝐹, 𝐴) ↾ ω)‘𝐵))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rdgdmlim 8219 | . . . . 5 ⊢ Lim dom rec(𝐹, 𝐴) | |
2 | limomss 7692 | . . . . 5 ⊢ (Lim dom rec(𝐹, 𝐴) → ω ⊆ dom rec(𝐹, 𝐴)) | |
3 | 1, 2 | ax-mp 5 | . . . 4 ⊢ ω ⊆ dom rec(𝐹, 𝐴) |
4 | 3 | sseli 3913 | . . 3 ⊢ (𝐵 ∈ ω → 𝐵 ∈ dom rec(𝐹, 𝐴)) |
5 | rdgsucg 8225 | . . 3 ⊢ (𝐵 ∈ dom rec(𝐹, 𝐴) → (rec(𝐹, 𝐴)‘suc 𝐵) = (𝐹‘(rec(𝐹, 𝐴)‘𝐵))) | |
6 | 4, 5 | syl 17 | . 2 ⊢ (𝐵 ∈ ω → (rec(𝐹, 𝐴)‘suc 𝐵) = (𝐹‘(rec(𝐹, 𝐴)‘𝐵))) |
7 | peano2b 7704 | . . 3 ⊢ (𝐵 ∈ ω ↔ suc 𝐵 ∈ ω) | |
8 | fvres 6775 | . . 3 ⊢ (suc 𝐵 ∈ ω → ((rec(𝐹, 𝐴) ↾ ω)‘suc 𝐵) = (rec(𝐹, 𝐴)‘suc 𝐵)) | |
9 | 7, 8 | sylbi 216 | . 2 ⊢ (𝐵 ∈ ω → ((rec(𝐹, 𝐴) ↾ ω)‘suc 𝐵) = (rec(𝐹, 𝐴)‘suc 𝐵)) |
10 | fvres 6775 | . . 3 ⊢ (𝐵 ∈ ω → ((rec(𝐹, 𝐴) ↾ ω)‘𝐵) = (rec(𝐹, 𝐴)‘𝐵)) | |
11 | 10 | fveq2d 6760 | . 2 ⊢ (𝐵 ∈ ω → (𝐹‘((rec(𝐹, 𝐴) ↾ ω)‘𝐵)) = (𝐹‘(rec(𝐹, 𝐴)‘𝐵))) |
12 | 6, 9, 11 | 3eqtr4d 2788 | 1 ⊢ (𝐵 ∈ ω → ((rec(𝐹, 𝐴) ↾ ω)‘suc 𝐵) = (𝐹‘((rec(𝐹, 𝐴) ↾ ω)‘𝐵))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1539 ∈ wcel 2108 ⊆ wss 3883 dom cdm 5580 ↾ cres 5582 Lim wlim 6252 suc csuc 6253 ‘cfv 6418 ωcom 7687 reccrdg 8211 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pr 5347 ax-un 7566 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-ov 7258 df-om 7688 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 |
This theorem is referenced by: frsucmpt 8239 frsucmptn 8240 seqomlem1 8251 seqomlem4 8254 onasuc 8320 onmsuc 8321 onesuc 8322 inf3lemc 9314 alephfplem2 9792 ackbij2lem2 9927 infpssrlem2 9991 fin23lem34 10033 fin23lem35 10034 itunisuc 10106 om2uzrdg 13604 uzrdgsuci 13608 |
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