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Theorem findreccl 10412
Description: Please add description here.
Hypothesis
Ref Expression
findreccl.1 |- (z e. P -> (G` z) e. P)
Assertion
Ref Expression
findreccl |- (C e. om -> (A e. P -> (rec(G, A)` C) e. P))
Distinct variable groups:   z,G   z,A   z,P

Proof of Theorem findreccl
StepHypRef Expression
1 rdg0t 3950 . . 3 |- (A e. P -> (rec(G, A)` (/)) = A)
2 eleq1a 1546 . . 3 |- (A e. P -> ((rec(G, A)` (/)) = A -> (rec(G, A)` (/)) e. P))
31, 2mpd 26 . 2 |- (A e. P -> (rec(G, A)` (/)) e. P)
4 nnont 3144 . . . 4 |- (y e. om -> y e. On)
5 rdgsuct 3951 . . . . . 6 |- (y e. On -> (rec(G, A)` suc y) = (G` (rec(G, A)` y)))
65eleq1d 1543 . . . . 5 |- (y e. On -> ((rec(G, A)` suc y) e. P <-> (G` (rec(G, A)` y)) e. P))
7 fveq2 3730 . . . . . . 7 |- (z = (rec(G, A)` y) -> (G` z) = (G` (rec(G, A)` y)))
87eleq1d 1543 . . . . . 6 |- (z = (rec(G, A)` y) -> ((G` z) e. P <-> (G` (rec(G, A)` y)) e. P))
9 findreccl.1 . . . . . 6 |- (z e. P -> (G` z) e. P)
108, 9vtoclga 1855 . . . . 5 |- ((rec(G, A)` y) e. P -> (G` (rec(G, A)` y)) e. P)
116, 10syl5bir 210 . . . 4 |- (y e. On -> ((rec(G, A)` y) e. P -> (rec(G, A)` suc y) e. P))
124, 11syl 10 . . 3 |- (y e. om -> ((rec(G, A)` y) e. P -> (rec(G, A)` suc y) e. P))
1312a1d 12 . 2 |- (y e. om -> (A e. P -> ((rec(G, A)` y) e. P -> (rec(G, A)` suc y) e. P)))
143, 13findfvcl 10411 1 |- (C e. om -> (A e. P -> (rec(G, A)` C) e. P))
Colors of variables: wff set class
Syntax hints:   -> wi 3   = wceq 958   e. wcel 960  (/)c0 2283  Oncon0 2954  suc csuc 2956  omcom 3137  ` cfv 3188  reccrdg 3937
This theorem is referenced by:  findabrcl 10413
This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 964  ax-gen 965  ax-8 966  ax-9 967  ax-10 968  ax-11 969  ax-12 970  ax-13 971  ax-14 972  ax-17 973  ax-4 975  ax-5o 977  ax-6o 980  ax-9o 1125  ax-10o 1142  ax-16 1212  ax-11o 1220  ax-ext 1462  ax-rep 2698  ax-sep 2708  ax-nul 2715  ax-pow 2748  ax-pr 2785  ax-un 2872
This theorem depends on definitions:  df-bi 147  df-or 224  df-an 225  df-3or 778  df-3an 779  df-ex 983  df-sb 1174  df-eu 1384  df-mo 1385  df-clab 1467  df-cleq 1472  df-clel 1475  df-ne 1590  df-ral 1652  df-rex 1653  df-rab 1655  df-v 1815  df-sbc 1945  df-dif 2052  df-un 2053  df-in 2054  df-ss 2056  df-nul 2284  df-if 2366  df-pw 2406  df-sn 2416  df-pr 2417  df-tp 2419  df-op 2420  df-uni 2508  df-iun 2572  df-br 2625  df-opab 2672  df-tr 2686  df-eprel 2838  df-id 2841  df-po 2846  df-so 2856  df-fr 2923  df-we 2940  df-ord 2957  df-on 2958  df-lim 2959  df-suc 2960  df-om 3138  df-xp 3190  df-rel 3191  df-cnv 3192  df-co 3193  df-dm 3194  df-rn 3195  df-res 3196  df-ima 3197  df-fun 3198  df-fn 3199  df-fv 3204  df-rdg 3938
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