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Syntax Definition wrmo 2673
Description: Extend wff notation to include restricted "at most one."
Hypotheses
Ref Expression
wph  wff  ph
vx  set  x
cA  class  A
Assertion
Ref Expression
wrmo  wff  E* x  e.  A ph

See definition df-rmo 2678 for more information.

Colors of variables: wff set class
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