An infinite sequence of possitive integers is called an "aplha sequence"if the number of even integers in the sequence is finite . if S is an infinite sequence of positive integers,is S an alpha sequence?"如果在某个数列中偶整数的数量是有限的,则一个正整数的无限或无穷大数列被称为aplha数列.假如S是一个正整数的有限数列,那S是alpha数列吗?"
(1) The first ten integers in S are even?(在S数列中,第一个十位数的整数是偶数吗?)
(2) An infinite number of intergers in S are odd?(在S数列中,整数的无限大的数是奇数吗?
An infinite sequence of possitive integers is called an "alpha sequence"if the number of even integers in the sequence is finite . if S is an infinite sequence of positive integers,is S an alpha sequence?"如果在某个数列中偶整数的数量是有限的,则一个正整数的无限或无穷大数列被称为aplha数列.假如S是一个正整数的有限数列,那S是alpha数列吗?"
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发表于 2005-9-9 22:04:00
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