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Theorem mo4 1958
Description: "At most one" expressed using implicit substitution. (Contributed by NM, 26-Jul-1995.)
Hypothesis
Ref Expression
mo4.1
Assertion
Ref Expression
mo4
Distinct variable groups:   ,   ,   ,
Allowed substitution hints:   ()   ()

Proof of Theorem mo4
StepHypRef Expression
1 nfv 1418 . 2  F/
2 mo4.1 . 2
31, 2mo4f 1957 1
Colors of variables: wff set class
Syntax hints:   wi 4   wa 97   wb 98  wal 1240  wmo 1898
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-io 629  ax-5 1333  ax-7 1334  ax-gen 1335  ax-ie1 1379  ax-ie2 1380  ax-8 1392  ax-10 1393  ax-11 1394  ax-i12 1395  ax-bnd 1396  ax-4 1397  ax-17 1416  ax-i9 1420  ax-ial 1424  ax-i5r 1425
This theorem depends on definitions:  df-bi 110  df-nf 1347  df-sb 1643  df-eu 1900  df-mo 1901
This theorem is referenced by:  eu4  1959  rmo4  2728  dffun5r  4857  dffun6f  4858  fun11  4909  brprcneu  5114  dff13  5350  mpt2fun  5545  caovimo  5636  th3qlem1  6144  addnq0mo  6429  mulnq0mo  6430  addsrmo  6651  mulsrmo  6652
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