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Theorem fnmap 3262
Description: Set exponentiation has a universal domain.
Assertion
Ref Expression
fnmap m Fn (V × V)

Proof of Theorem fnmap
StepHypRef Expression
1 visset 1350 . . 3 yV
2 visset 1350 . . 3 xV
3 mapex 3261 . . 3 ((yVxV) → {ff:y–→x} ∈ V)
41, 2, 3mp2an 520 . 2 {ff:y–→x} ∈ V
5 df-map 3259 . . 3 m = {⟨⟨x, y⟩, z⟩∣z = {ff:y–→x}}
62, 1pm3.2i 234 . . . . 5 (xVyV)
76biantrur 544 . . . 4 (z = {ff:y–→x} ↔ ((xVyV) ∧ z = {ff:y–→x}))
87bioprabi 3027 . . 3 {⟨⟨x, y⟩, z⟩∣z = {ff:y–→x}} = {⟨⟨x, y⟩, z⟩∣((xVyV) ∧ z = {ff:y–→x})}
95, 8eqtr 1119 . 2 m = {⟨⟨x, y⟩, z⟩∣((xVyV) ∧ z = {ff:y–→x})}
104, 9fnoprab2 3039 1 m Fn (V × V)
Colors of variables: wff set class
Syntax hints:   ∧ wa 196  {cab 1090   = wceq 1091   ∈ wcel 1092  Vcvv 1348   × cxp 2408   Fn wfn 2417  –→wf 2418  {copab2 3002   ↑m cm 3258
This theorem was proved from axioms:  ax-1 3  ax-2 4  ax-3 5  ax-mp 6  ax-4 673  ax-5 674  ax-6 675  ax-7 676  ax-gen 677  ax-8 798  ax-9 799  ax-10 800  ax-11 801  ax-12 802  ax-13 804  ax-14 805  ax-16 922  ax-17 925  ax-ext 1074  ax-rep 1075  ax-un 1076  ax-pow 1077
This theorem depends on definitions:  df-bi 128  df-or 197  df-an 198  df-ex 679  df-sb 853  df-eu 1009  df-mo 1010  df-clab 1093  df-cleq 1097  df-clel 1099  df-v 1349  df-dif 1489  df-un 1490  df-in 1491  df-ss 1492  df-nul 1708  df-pw 1799  df-sn 1811  df-pr 1812  df-op 1815  df-uni 1920  df-br 2063  df-opab 2098  df-id 2125  df-xp 2424  df-rel 2425  df-cnv 2426  df-co 2427  df-dm 2428  df-rn 2429  df-fun 2432  df-fn 2433  df-f 2434  df-oprab 3004  df-map 3259
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