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  2. Regular expression - Wikipedia

    en.wikipedia.org/wiki/Regular_expression

    For example, in ASCII-based implementations, character ranges of the form [x-y] are valid wherever x and y have code points in the range [0x00,0x7F] and codepoint(x) ≤ codepoint(y). The natural extension of such character ranges to Unicode would simply change the requirement that the endpoints lie in [0x00,0x7F] to the requirement that they ...

  3. Substitution (logic) - Wikipedia

    en.wikipedia.org/wiki/Substitution_(logic)

    Determining which value is assumed to be free depends on context and semantics. The substitution property of equality , or Leibniz's Law (though the latter term is usually reserved for philosophical contexts), generally states that, if two things are equal, then any property of one, must be a property of the other.

  4. Constituent (linguistics) - Wikipedia

    en.wikipedia.org/wiki/Constituent_(linguistics)

    The general substitution test replaces the test string with some other word or phrase. [20] It is similar to proform substitution, the only difference being that the replacement word or phrase is not a proform, e.g. Drunks could put off the customers. (a) Beggars could put off the customers. (Beggars ↔ Drunks) (b) Drunks could put off our guests.

  5. Merriam-Webster picks 'authentic' as 2023 word of the year - AOL

    www.aol.com/merriam-webster-picks-authentic-2023...

    Merriam-Webster's word of the year for 2023 is "authentic". Searches for the term were driven by AI, celebrities and identity. Merriam-Webster picks 'authentic' as 2023 word of the year

  6. Validity (logic) - Wikipedia

    en.wikipedia.org/wiki/Validity_(logic)

    The corresponding conditional of a valid argument is a logical truth and the negation of its corresponding conditional is a contradiction. The conclusion is a necessary consequence of its premises. An argument that is not valid is said to be "invalid". An example of a valid (and sound) argument is given by the following well-known syllogism:

  7. Merriam-Webster’s word of the year 2023 is ‘authentic.’ Here ...

    www.aol.com/finance/merriam-webster-word-2023...

    Authenticity has become a central moral framework in society–the subtle yet pervasive value that animates and adjudicates our media, culture, and politics. Merriam-Webster’s word of the year ...

  8. Use AOL Certified Mail to confirm legitimate AOL emails

    help.aol.com/articles/what-is-aol-certified-mail

    AOL may send you emails from time to time about products or features we think you'd be interested in. If you're ever concerned about the legitimacy of these emails, just check to see if there's a green "AOL Certified Mail" icon beside the sender name.

  9. Use AOL Official Mail to confirm legitimate AOL emails

    help.aol.com/articles/what-is-official-aol-mail

    AOL Mail is focused on keeping you safe while you use the best mail product on the web. One way we do this is by protecting against phishing and scam emails though the use of AOL Official Mail.