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Theorem bnd 6189
Description: A very strong generalization of the Axiom of Replacement (compare zfrep6 4800), derived from the Collection Principle cp 6188. Its strength lies in the rather profound fact that ph(x, y) does not have to be a "function-like" wff, as it does in the standard Axiom of Replacement. This theorem is sometimes called the Boundedness Axiom.
Assertion
Ref Expression
bnd |- (A.x e. z E.yph -> E.wA.x e. z E.y e. w ph)
Distinct variable groups:   ph,z,w   x,y,z,w
Allowed substitution hints:   ph(x,y)

Proof of Theorem bnd
StepHypRef Expression
1 cp 6188 . . 3 |- E.wA.x e. z (E.yph -> E.y e. w ph)
2 ralim 2230 . . . 4 |- (A.x e. z (E.yph -> E.y e. w ph) -> (A.x e. z E.yph -> A.x e. z E.y e. w ph))
32eximi 1408 . . 3 |- (E.wA.x e. z (E.yph -> E.y e. w ph) -> E.w(A.x e. z E.yph -> A.x e. z E.y e. w ph))
41, 3ax-mp 8 . 2 |- E.w(A.x e. z E.yph -> A.x e. z E.y e. w ph)
5 19.37v 1769 . 2 |- (E.w(A.x e. z E.yph -> A.x e. z E.y e. w ph) <-> (A.x e. z E.yph -> E.wA.x e. z E.y e. w ph))
64, 5mpbi 217 1 |- (A.x e. z E.yph -> E.wA.x e. z E.y e. w ph)
Colors of variables: wff set class
Syntax hints:   -> wi 4  E.wex 1380  A.wral 2169  E.wrex 2170
This theorem is referenced by:  bnd2 6190
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-5 1376  ax-6 1377  ax-7 1378  ax-gen 1379  ax-8 1461  ax-10 1462  ax-11 1463  ax-12 1464  ax-13 1465  ax-14 1466  ax-17 1473  ax-9 1488  ax-4 1494  ax-16 1671  ax-ext 1942  ax-rep 3462  ax-sep 3472  ax-nul 3481  ax-pow 3517  ax-pr 3541  ax-un 3811  ax-reg 5998  ax-inf2 6033
This theorem depends on definitions:  df-bi 190  df-or 383  df-an 384  df-3or 947  df-3an 948  df-ex 1381  df-sb 1633  df-eu 1860  df-mo 1861  df-clab 1948  df-cleq 1953  df-clel 1956  df-ne 2080  df-ral 2173  df-rex 2174  df-rab 2176  df-v 2367  df-sbc 2532  df-csb 2606  df-dif 2665  df-un 2667  df-in 2669  df-ss 2671  df-pss 2673  df-nul 2927  df-if 3028  df-pw 3084  df-sn 3099  df-pr 3100  df-tp 3102  df-op 3103  df-uni 3232  df-int 3266  df-iun 3304  df-iin 3305  df-br 3377  df-opab 3431  df-tr 3446  df-eprel 3624  df-id 3627  df-po 3632  df-so 3646  df-fr 3665  df-we 3681  df-ord 3697  df-on 3698  df-lim 3699  df-suc 3700  df-om 3967  df-xp 4014  df-rel 4015  df-cnv 4016  df-co 4017  df-dm 4018  df-rn 4019  df-res 4020  df-ima 4021  df-fun 4022  df-fn 4023  df-f 4024  df-fv 4028  df-mpt 5061  df-rdg 5320  df-r1 6075  df-rank 6076
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