Theorem fnce 6176

Description: Functionhood statement for cardinal exponentiation. (Contributed by SF, 6-Mar-2015.)

Assertion

Ref	Expression
fnce	|- ↑c Fn ( NC X. NC )

Proof of Theorem fnce

Dummy variables a b g m n p are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		ovcelem1 6171	. . . . 5 |- ((n e. NC /\ m e. NC ) -> {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))} e. _V)
2		isset 2863	. . . . 5 |- ({g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))} e. _V <-> E.p p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))})
3	1, 2	sylib 188	. . . 4 |- ((n e. NC /\ m e. NC ) -> E.p p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))})
4		moeq 3012	. . . . 5 |- E*p p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))}
5		eu5 2242	. . . . 5 |- (E!p p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))} <-> (E.p p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))} /\ E*p p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))}))
6	4, 5	mpbiran2 885	. . . 4 |- (E!p p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))} <-> E.p p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))})
7	3, 6	sylibr 203	. . 3 |- ((n e. NC /\ m e. NC ) -> E!p p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))})
8	7	fnoprab 5586	. 2 |- {<.<.n, m>., p>. | ((n e. NC /\ m e. NC ) /\ p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))})} Fn {<.n, m>. | (n e. NC /\ m e. NC )}
9		df-ce 6106	. . . . 5 |- ↑c = (n e. NC , m e. NC |-> {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))})
10		df-mpt2 5654	. . . . 5 |- (n e. NC , m e. NC |-> {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))}) = {<.<.n, m>., p>. | ((n e. NC /\ m e. NC ) /\ p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))})}
11	9, 10	eqtri 2373	. . . 4 |- ↑c = {<.<.n, m>., p>. | ((n e. NC /\ m e. NC ) /\ p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))})}
12	11	fneq1i 5178	. . 3 |- ( ↑c Fn ( NC X. NC ) <-> {<.<.n, m>., p>. | ((n e. NC /\ m e. NC ) /\ p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))})} Fn ( NC X. NC ))
13		df-xp 4784	. . . 4 |- ( NC X. NC ) = {<.n, m>. | (n e. NC /\ m e. NC )}
14	13	fneq2i 5179	. . 3 |- ({<.<.n, m>., p>. | ((n e. NC /\ m e. NC ) /\ p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))})} Fn ( NC X. NC ) <-> {<.<.n, m>., p>. | ((n e. NC /\ m e. NC ) /\ p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))})} Fn {<.n, m>. | (n e. NC /\ m e. NC )})
15	12, 14	bitri 240	. 2 |- ( ↑c Fn ( NC X. NC ) <-> {<.<.n, m>., p>. | ((n e. NC /\ m e. NC ) /\ p = {g | E.aE.b(~P1 a e. n /\ ~P1 b e. m /\ g ~~ (a ^m b))})} Fn {<.n, m>. | (n e. NC /\ m e. NC )})
16	8, 15	mpbir 200	1 |- ↑c Fn ( NC X. NC )

Syntax hints:   /\ wa 358   /\ w3a 934  E.wex 1541   = wceq 1642   e. wcel 1710  E!weu 2204  E*wmo 2205  {cab 2339  _Vcvv 2859  ~P₁ cpw1 4135  {copab 4622   class class class wbr 4639   X. cxp 4770   Fn wfn 4776  (class class class)co 5525  {coprab 5527   |-> cmpt2 5653   ^m cmap 5999   ~~ cen 6028   NC cncs 6088   ↑_c cce 6096

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1546  ax-5 1557  ax-17 1616  ax-9 1654  ax-8 1675  ax-13 1712  ax-14 1714  ax-6 1729  ax-7 1734  ax-11 1746  ax-12 1925  ax-ext 2334  ax-nin 4078  ax-xp 4079  ax-cnv 4080  ax-1c 4081  ax-sset 4082  ax-si 4083  ax-ins2 4084  ax-ins3 4085  ax-typlower 4086  ax-sn 4087

This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3or 935  df-3an 936  df-nan 1288  df-tru 1319  df-ex 1542  df-nf 1545  df-sb 1649  df-eu 2208  df-mo 2209  df-clab 2340  df-cleq 2346  df-clel 2349  df-nfc 2478  df-ne 2518  df-ral 2619  df-rex 2620  df-reu 2621  df-rmo 2622  df-rab 2623  df-v 2861  df-sbc 3047  df-nin 3211  df-compl 3212  df-in 3213  df-un 3214  df-dif 3215  df-symdif 3216  df-ss 3259  df-pss 3261  df-nul 3551  df-if 3663  df-pw 3724  df-sn 3741  df-pr 3742  df-uni 3892  df-int 3927  df-opk 4058  df-1c 4136  df-pw1 4137  df-uni1 4138  df-xpk 4185  df-cnvk 4186  df-ins2k 4187  df-ins3k 4188  df-imak 4189  df-cok 4190  df-p6 4191  df-sik 4192  df-ssetk 4193  df-imagek 4194  df-idk 4195  df-iota 4339  df-0c 4377  df-addc 4378  df-nnc 4379  df-fin 4380  df-lefin 4440  df-ltfin 4441  df-ncfin 4442  df-tfin 4443  df-evenfin 4444  df-oddfin 4445  df-sfin 4446  df-spfin 4447  df-phi 4565  df-op 4566  df-proj1 4567  df-proj2 4568  df-opab 4623  df-br 4640  df-1st 4723  df-swap 4724  df-sset 4725  df-co 4726  df-ima 4727  df-si 4728  df-id 4767  df-xp 4784  df-cnv 4785  df-rn 4786  df-dm 4787  df-res 4788  df-fun 4789  df-fn 4790  df-f 4791  df-f1 4792  df-fo 4793  df-f1o 4794  df-fv 4795  df-2nd 4797  df-ov 5526  df-oprab 5528  df-mpt 5652  df-mpt2 5654  df-txp 5736  df-ins2 5750  df-ins3 5752  df-image 5754  df-ins4 5756  df-si3 5758  df-funs 5760  df-fns 5762  df-pw1fn 5766  df-map 6001  df-en 6029  df-ce 6106

This theorem is referenced by:  fce  6188