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Mirrors > Home > MPE Home > Th. List > rdgfun | Structured version Visualization version GIF version |
Description: The recursive definition generator is a function. (Contributed by Mario Carneiro, 16-Nov-2014.) |
Ref | Expression |
---|---|
rdgfun | ⊢ Fun rec(𝐹, 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-rdg 8029 | . . 3 ⊢ rec(𝐹, 𝐴) = recs((𝑔 ∈ V ↦ if(𝑔 = ∅, 𝐴, if(Lim dom 𝑔, ∪ ran 𝑔, (𝐹‘(𝑔‘∪ dom 𝑔)))))) | |
2 | 1 | tfr1a 8013 | . 2 ⊢ (Fun rec(𝐹, 𝐴) ∧ Lim dom rec(𝐹, 𝐴)) |
3 | 2 | simpli 487 | 1 ⊢ Fun rec(𝐹, 𝐴) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1538 Vcvv 3441 ∅c0 4243 ifcif 4425 ∪ cuni 4800 ↦ cmpt 5110 dom cdm 5519 ran crn 5520 Lim wlim 6160 Fun wfun 6318 ‘cfv 6324 reccrdg 8028 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3or 1085 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-ral 3111 df-rex 3112 df-reu 3113 df-rab 3115 df-v 3443 df-sbc 3721 df-csb 3829 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-pss 3900 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-tp 4530 df-op 4532 df-uni 4801 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-tr 5137 df-id 5425 df-eprel 5430 df-po 5438 df-so 5439 df-fr 5478 df-we 5480 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-res 5531 df-ima 5532 df-pred 6116 df-ord 6162 df-on 6163 df-lim 6164 df-suc 6165 df-iota 6283 df-fun 6326 df-fn 6327 df-f 6328 df-f1 6329 df-fo 6330 df-f1o 6331 df-fv 6332 df-wrecs 7930 df-recs 7991 df-rdg 8029 |
This theorem is referenced by: rdgsucg 8042 rdglimg 8044 frfnom 8053 r1funlim 9179 ackbij2 9654 itunifval 9827 wunex2 10149 nnexALT 11627 axdc4uzlem 13346 seqex 13366 satf 32713 |
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