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| Mirrors > Home > MPE Home > Th. List > fr0g | Structured version Visualization version GIF version | ||
| Description: The initial value resulting from finite recursive definition generation. (Contributed by NM, 15-Oct-1996.) |
| Ref | Expression |
|---|---|
| fr0g | ⊢ (𝐴 ∈ 𝐵 → ((rec(𝐹, 𝐴) ↾ ω)‘∅) = 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | peano1 7830 | . . 3 ⊢ ∅ ∈ ω | |
| 2 | fvres 6847 | . . 3 ⊢ (∅ ∈ ω → ((rec(𝐹, 𝐴) ↾ ω)‘∅) = (rec(𝐹, 𝐴)‘∅)) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ ((rec(𝐹, 𝐴) ↾ ω)‘∅) = (rec(𝐹, 𝐴)‘∅) |
| 4 | rdg0g 8357 | . 2 ⊢ (𝐴 ∈ 𝐵 → (rec(𝐹, 𝐴)‘∅) = 𝐴) | |
| 5 | 3, 4 | eqtrid 2786 | 1 ⊢ (𝐴 ∈ 𝐵 → ((rec(𝐹, 𝐴) ↾ ω)‘∅) = 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1547 ∈ wcel 2119 ∅c0 4262 ↾ cres 5621 ‘cfv 6486 ωcom 7807 reccrdg 8339 |
| 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 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-sep 5219 ax-nul 5229 ax-pr 5363 ax-un 7679 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3or 1093 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-ral 3054 df-rex 3064 df-reu 3345 df-rab 3392 df-v 3433 df-sbc 3724 df-csb 3832 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3903 df-nul 4263 df-if 4456 df-pw 4532 df-sn 4557 df-pr 4559 df-op 4563 df-uni 4840 df-iun 4924 df-br 5074 df-opab 5136 df-mpt 5155 df-tr 5181 df-id 5514 df-eprel 5519 df-po 5527 df-so 5528 df-fr 5572 df-we 5574 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-pred 6253 df-ord 6314 df-on 6315 df-lim 6316 df-suc 6317 df-iota 6442 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-fv 6494 df-ov 7360 df-om 7808 df-2nd 7933 df-frecs 8222 df-wrecs 8253 df-recs 8302 df-rdg 8340 |
| This theorem is referenced by: unblem2 9194 dffi3 9335 inf0 9534 inf3lemb 9538 trcl 9641 alephfplem1 10018 infpssrlem1 10217 fin23lem34 10260 ituni0 10332 hsmexlem7 10337 axdclem2 10434 wunex2 10653 wuncval2 10662 peano5nni 12169 1nn 12177 om2uz0i 13901 om2uzrdg 13910 uzrdg0i 13913 noseq0 28301 noseqind 28303 om2noseq0 28307 om2noseqrdg 28315 noseqrdg0 28318 dfnns2 28383 neibastop2lem 36597 mh-inf3f1 36778 orbitinit 45409 |
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