Question

Logic

Answer 1

if 'a', then 'b' : a-> b

Answer 2

is that correct ?.. can i write teh same as,

only if 'b', then 'a' ?

Answer 3

Are you asking if you can reverse "if A, then B" to "if B, then A"?

Answer 4

no, the thing troubling me is "only if"

Answer 5

That doesn't sound right. "Only if" B still has many things that aren't A.

Answer 6

actually i dont get "if and only if", im trying to understand it by breaking it down to "if" and "only if"

Answer 7

may i knw why it doesnt sound right to you, it does sound right to me

Answer 8

But... a square is a kind of a rectangle.