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Joined 2 years ago
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Cake day: July 11th, 2023

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  • The boolean operator ‘If and only if’ do not have a relation with the program instruction ‘if’.

    The programatic ‘if’ is a jump, not a boolean operator. It do not have truth table.

    In logic:, if and iff can be seen like functions taking two booleans and returning a boolean

    • ‘if a then b’ (noted a -> b): return true if a is false or b is true. Example: ‘if I eat pizza then I fart’ This is true even if I fart all the time (if b is true, we do not care about the value of a) as long as I fart when eating pizza (if a is true, b must be also true)

    • ‘a <-> b’ is equivalent to ‘a -> b and b -> a’: the two should be true at the same time. I can only fart will eating pizza and cannot fart otherwise.











  • there is nuance in personal interactions that is stripped away via text so it’s very easy to type something you think is perfectly innocuous in spoken word that doesn’t translate at all

    Good point. I will add that on the internet you are not even sure the person is a native English speaker. Which add another barrier.

    And now that I think about it, they may be even cultural differences that can have an impact on subjects like politics.

    All of that will some groups try to brainwash us into buying their products or their hateful ideology.

    But there is something I liked about the old Reddit and here on Lemmy/Mastodon is that we still can some self introspection like Op did