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Jan 23rd, 2019
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  1. {itshape Soient $E$ et $F$ des ensembles finis et soit $f:Elongto F$.}
  2.  
  3. begin{proposition}
  4. Soient $E$ et $F$ des ensembles finis et soit $f:Elongto F$.\
  5. Alors,
  6. begin{description}[font=normalfontitshape, leftmargin=!]
  7. item[quad a) $ftext{ injective}$] $impl va{E} leq va{F}$
  8. item[quad b) $ftext{ surjective}$] $impl va{E} geq va{F} $
  9. item[quad c) $ftext{ bijective}$] $impl va{E} = va{F}$
  10. end{description}
  11. end{proposition}
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