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Theorem ex-rn 30510
Description: Example for df-rn 5642. Example by David A. Wheeler. (Contributed by Mario Carneiro, 7-May-2015.)
Assertion
Ref Expression
ex-rn (𝐹 = {⟨2, 6⟩, ⟨3, 9⟩} → ran 𝐹 = {6, 9})

Proof of Theorem ex-rn
StepHypRef Expression
1 rneq 5891 . 2 (𝐹 = {⟨2, 6⟩, ⟨3, 9⟩} → ran 𝐹 = ran {⟨2, 6⟩, ⟨3, 9⟩})
2 df-pr 4570 . . . 4 {⟨2, 6⟩, ⟨3, 9⟩} = ({⟨2, 6⟩} ∪ {⟨3, 9⟩})
32rneqi 5892 . . 3 ran {⟨2, 6⟩, ⟨3, 9⟩} = ran ({⟨2, 6⟩} ∪ {⟨3, 9⟩})
4 rnun 6109 . . 3 ran ({⟨2, 6⟩} ∪ {⟨3, 9⟩}) = (ran {⟨2, 6⟩} ∪ ran {⟨3, 9⟩})
5 2nn 12254 . . . . . . 7 2 ∈ ℕ
65elexi 3452 . . . . . 6 2 ∈ V
76rnsnop 6188 . . . . 5 ran {⟨2, 6⟩} = {6}
8 3nn 12260 . . . . . . 7 3 ∈ ℕ
98elexi 3452 . . . . . 6 3 ∈ V
109rnsnop 6188 . . . . 5 ran {⟨3, 9⟩} = {9}
117, 10uneq12i 4106 . . . 4 (ran {⟨2, 6⟩} ∪ ran {⟨3, 9⟩}) = ({6} ∪ {9})
12 df-pr 4570 . . . 4 {6, 9} = ({6} ∪ {9})
1311, 12eqtr4i 2762 . . 3 (ran {⟨2, 6⟩} ∪ ran {⟨3, 9⟩}) = {6, 9}
143, 4, 133eqtri 2763 . 2 ran {⟨2, 6⟩, ⟨3, 9⟩} = {6, 9}
151, 14eqtrdi 2787 1 (𝐹 = {⟨2, 6⟩, ⟨3, 9⟩} → ran 𝐹 = {6, 9})
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1542  cun 3887  {csn 4567  {cpr 4569  cop 4573  ran crn 5632  cn 12174  2c2 12236  3c3 12237  6c6 12240  9c9 12243
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 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2708  ax-sep 5231  ax-nul 5241  ax-pr 5375  ax-un 7689  ax-1cn 11096
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3062  df-reu 3343  df-rab 3390  df-v 3431  df-sbc 3729  df-csb 3838  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-pss 3909  df-nul 4274  df-if 4467  df-pw 4543  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4851  df-iun 4935  df-br 5086  df-opab 5148  df-mpt 5167  df-tr 5193  df-id 5526  df-eprel 5531  df-po 5539  df-so 5540  df-fr 5584  df-we 5586  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-pred 6265  df-ord 6326  df-on 6327  df-lim 6328  df-suc 6329  df-iota 6454  df-fun 6500  df-fn 6501  df-f 6502  df-f1 6503  df-fo 6504  df-f1o 6505  df-fv 6506  df-ov 7370  df-om 7818  df-2nd 7943  df-frecs 8231  df-wrecs 8262  df-recs 8311  df-rdg 8349  df-nn 12175  df-2 12244  df-3 12245
This theorem is referenced by: (None)
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