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Theorem f1o0 5673
Description: One-to-one onto mapping of the empty set. (Contributed by NM, 10-Sep-2004.)
Assertion
Ref Expression
f1o0  |-  (/) : (/) -1-1-onto-> (/)

Proof of Theorem f1o0
StepHypRef Expression
1 eqid 2238 . 2  |-  (/)  =  (/)
2 f1o00 5671 . 2  |-  ( (/) :
(/)
-1-1-onto-> (/)  <->  (
(/)  =  (/)  /\  (/)  =  (/) ) )
31, 1, 2mpbir2an 955 1  |-  (/) : (/) -1-1-onto-> (/)
Colors of variables: wff set class
Syntax hints:    = wceq 1402   (/)c0 3520   -1-1-onto->wf1o 5371
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4244  ax-nul 4254  ax-pow 4306  ax-pr 4341
This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-v 2823  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-pw 3687  df-sn 3711  df-pr 3712  df-op 3714  df-br 4126  df-opab 4188  df-id 4433  df-xp 4775  df-rel 4776  df-cnv 4777  df-co 4778  df-dm 4779  df-rn 4780  df-fun 5374  df-fn 5375  df-f 5376  df-f1 5377  df-fo 5378  df-f1o 5379
This theorem is referenced by:  iso0  6013  fzf1o  12120  ennnfonelemhf1o  13282
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