if 7 is less than 4,then 7 is not a prime number（素数）.

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if 7 is less than 4,then 7 is not a prime number（素数）.
7 is not less than 4.
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7 is a prime number.
就是不知道横线里面填什么!求高人指教一二!

这是归纳法三段论,横线上填的是归纳原理,即the number that is not less than 4 is not a prime number
结论应该是7 is (not) a prime number.多了一个not
更准确的讲,第一行应该是the number that is less than 4 is not a prime number
第二行7 is not less than 4.
第三行 7 is not a prime number.

if 7 is less than 4,then 7 is not a prime number（素数）. what is the probability that a prime number is less than 7,g If “a” is a positive number less than 1 and b= 根号a ,then a（ If we let be the greatest prime number not more than a,then If we let be the greatest prime number not more than a ,then if 4 less than 3 times a certain number is 2 more than the n if 4 less than 3 times a certian number is 2 more than the n 英语翻译1.If 4 less than 3 times a certain number is 2 more than if n=4p,where p is a prime number greater than 2 ,how many d if 3 times a less than a number n is the same as the number 英语翻译a number is added to 9 less than twice the number.If the If 25% of a number is 324 less than 70% of the same number,w