I think the interchangeability is just hard to understand. Even though I know they are the same thing, it is still really hard to intuitively see them as being equal. I personally try (but not very hard) to stick with X → Y in mathy discussions and if/only if for normal discussions
I think the interchangeability is just hard to understand. Even though I know they are the same thing, it is still really hard to intuitively see them as being equal. I personally try (but not very hard) to stick with X → Y in mathy discussions and if/only if for normal discussions