نعتبر المجموعتين التاليتين :
x app A equi 1/(3x+2) app Z equi 1+1/(3x+2)=(3x+3)/3x+2) app Z equi x app B
d'où A=B
app= appartient à equi= équivalent à
"I do belive that problems are the heart of Mathematics" P.R. Halmos
x app A equi 1/(3x+2) app Z equi 1+1/(3x+2)=(3x+3)/3x+2) app Z equi x app B
d'où A=B
app= appartient à equi= équivalent à
"I do belive that problems are the heart of Mathematics"
P.R. Halmos