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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 7883 | . . 3 ⊢ ∅ ∈ ω | |
2 | fvres 6910 | . . 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 8433 | . 2 ⊢ (𝐴 ∈ 𝐵 → (rec(𝐹, 𝐴)‘∅) = 𝐴) | |
5 | 3, 4 | eqtrid 2783 | 1 ⊢ (𝐴 ∈ 𝐵 → ((rec(𝐹, 𝐴) ↾ ω)‘∅) = 𝐴) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1540 ∈ wcel 2105 ∅c0 4322 ↾ cres 5678 ‘cfv 6543 ωcom 7859 reccrdg 8415 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2702 ax-sep 5299 ax-nul 5306 ax-pr 5427 ax-un 7729 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-ral 3061 df-rex 3070 df-reu 3376 df-rab 3432 df-v 3475 df-sbc 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-iun 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-pred 6300 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-ov 7415 df-om 7860 df-2nd 7980 df-frecs 8272 df-wrecs 8303 df-recs 8377 df-rdg 8416 |
This theorem is referenced by: unblem2 9302 dffi3 9432 inf0 9622 inf3lemb 9626 trcl 9729 alephfplem1 10105 infpssrlem1 10304 fin23lem34 10347 ituni0 10419 hsmexlem7 10424 axdclem2 10521 wunex2 10739 wuncval2 10748 peano5nni 12222 1nn 12230 om2uz0i 13919 om2uzrdg 13928 uzrdg0i 13931 peano5n0s 27950 0n0s 27954 neibastop2lem 35561 |
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