I am not sure if I said something really stupid in response to this question

How does "if p, then q" compare to "p only if q"?

dunno if it would be a typo (I tend to think of them as identical) or a moment's confusion. Anyway, can someone post the comment I deleted?

It may seem a bit OCD to care! But I'm curious if I got that confused, and cannot recall.

I think I recall saying they were opposites but said the same thing, which is confusing, unless I commented that they express necessity and an inverse sufficiency.

Sorry for the OCD request, but I'd appreciate a copy and paste!

I've proven to myself that I don't tend to make that mistake, but I'm still intrigued. Anyway, not made to feel very welcome, so I'll delete again.

  • * be from a typo.
    – user64448
    Commented Feb 1, 2023 at 11:11

1 Answer 1


This is a pain: I will never know.

  • 1
    I think this is technically the correct answer haha.
    – user64448
    Commented Feb 1, 2023 at 22:30

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