Anatomy of a proof: if n is even, then n squared is even

[@whirlwindray]

It was helpful! Thank you

[@guilhemescudero9114]

I appreciate your work, could I ask a question : shouldn't you use "An integer n is even if and only if it has the form n = 2k for some integer k" in your definition instead of what you wrote ?

[@husseinsalehi3240]

Thanks very helpfull

[@xyphyblack5585]

well good job

[@jaswinderkaur6215]

Prove that if n is an integer, then ⌊n/2⌋=n/2 if n is even and (n+1)/2 if n is odd.

[@jairusjayjay6679]

Some explanation were unnecessary.

[@BobBob-po3lp]

nothing here was necessary, if it wasn't for you just skip pass it but other people might have needed that.