FP1 Proof

When proving a general statement is divisble by a certain number is it allowed to have a fraction in the last line, that shows the general statement is correct?

Thanks

Reply 1

Plankey

I wouldn't have thought so. For example you can't say 10 is divisble by 3 just by writing 10 over 3 as a fraction, because it isn't exacly divisible.

Reply 2

AmyL6

Not a fraction but a factor outside of brackets (the factor being the number it is divisible by)

Reply 3

nazgul60

so could there be a fraction inside the bracket and the number your trying to show it is divisible outside?

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