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Theorem djulf1o 7391
Description: The left injection function on all sets is one to one and onto. (Contributed by Jim Kingdon, 22-Jun-2022.)
Assertion
Ref Expression
djulf1o  |- inl : _V -1-1-onto-> ( { (/) }  X.  _V )

Proof of Theorem djulf1o
StepHypRef Expression
1 0ex 4258 . 2  |-  (/)  e.  _V
2 df-inl 7380 . 2  |- inl  =  ( x  e.  _V  |->  <. (/)
,  x >. )
31, 2djuf1olem 7386 1  |- inl : _V -1-1-onto-> ( { (/) }  X.  _V )
Colors of variables: wff set class
Syntax hints:   _Vcvv 2821   (/)c0 3520   {csn 3708    X. cxp 4770   -1-1-onto->wf1o 5374  inlcinl 7378
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 4247  ax-nul 4257  ax-pow 4309  ax-pr 4344  ax-un 4576
This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  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-sbc 3052  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-pw 3690  df-sn 3714  df-pr 3715  df-op 3717  df-uni 3934  df-br 4129  df-opab 4191  df-mpt 4192  df-id 4436  df-xp 4778  df-rel 4779  df-cnv 4780  df-co 4781  df-dm 4782  df-rn 4783  df-iota 5335  df-fun 5377  df-fn 5378  df-f 5379  df-f1 5380  df-fo 5381  df-f1o 5382  df-fv 5383  df-1st 6367  df-2nd 6368  df-inl 7380
This theorem is referenced by:  casefun  7418  caseinl  7424  caseinr  7425  endjusym  7429  ctssdccl  7444  ctssdclemr  7445  dju1p1e2  7542
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