  Centrale des maths - centraledesmaths.uregina.ca  Dilemmes & doutes    « D & D »    Sujet: 1 to 1   nouvelle recherche

3 articles trouvés pour ce sujet.    Page1/1            Composition of functions and one to one 2012-10-17 Ariana pose la question :If f o g are one to one function,does it follow that g is one to one? Give reasons for your answersPenny Nom lui répond.     The number of points on a line is equivalent to that of a surface 2011-03-24 Gary pose la question :I I was reading about how the number of points on a line is equivalent to that of a surface. This was done by taking any point on a line then taking alternating digits and making them as points on an x and y axis therefore points on a surface.The problem is as i see it if you just take a line then hold it over a surface you have just put the points on the line in a one to one correspondence with the points directly under it on the surface.Now you have all the rest of the surface which cannot be mapped onto the line since it is already used up.What am i missing?Penny Nom lui répond.     Equivalent sets 2004-03-06 A student pose la question :If A=(1,2,3,4,...) and B=(5,10,15,20,...), is A equivalent to B. Why or Why not ?Penny Nom lui répond.      Page1/1    Centrale des maths reçoit une aide financière de l’Université de Regina et de The Pacific Institute for the Mathematical Sciences.    Qui sommes-nous :: carte du site :: our english site