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Theorem nfmo 2221
Description: Bound-variable hypothesis builder for "at most one." (Contributed by NM, 9-Mar-1995.)
Hypothesis
Ref Expression
nfeu.1  F/
Assertion
Ref Expression
nfmo  F/

Proof of Theorem nfmo
StepHypRef Expression
1 nftru 1554 . . 3  F/
2 nfeu.1 . . . 4  F/
32a1i 10 . . 3  F/
41, 3nfmod 2219 . 2  F/
54trud 1323 1  F/
Colors of variables: wff setvar class
Syntax hints:   wtru 1316   F/wnf 1544  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-an 360  df-tru 1319  df-ex 1542  df-nf 1545  df-eu 2208  df-mo 2209
This theorem is referenced by:  moexex  2273  2moex  2275  2euex  2276  mosubopt  4612  dffun6f  5123
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