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Theorem eumo 2244
Description: Existential uniqueness implies "at most one." (Contributed by NM, 23-Mar-1995.)
Assertion
Ref Expression
eumo

Proof of Theorem eumo
StepHypRef Expression
1 eu5 2242 . 2
21simprbi 450 1
Colors of variables: wff setvar class
Syntax hints:   wi 4  wex 1541  weu 2204  wmo 2205
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1546  ax-5 1557  ax-17 1616  ax-9 1654  ax-8 1675  ax-6 1729  ax-7 1734  ax-11 1746  ax-12 1925
This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-tru 1319  df-ex 1542  df-nf 1545  df-sb 1649  df-eu 2208  df-mo 2209
This theorem is referenced by:  eumoi  2245  euimmo  2253  moaneu  2263  eupick  2267  2eumo  2277  2exeu  2281  2eu2  2285  2eu5  2288  moeq3  3013  nfunsn  5353  dff3  5420  fnoprabg  5585
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