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The corresponding logical symbols are "", "", [6] and , [10] and sometimes "iff".These are usually treated as equivalent. However, some texts of mathematical logic (particularly those on first-order logic, rather than propositional logic) make a distinction between these, in which the first, ↔, is used as a symbol in logic formulas, while ⇔ is used in reasoning about those logic formulas ...
There is significant overlap between the English interrogative words and the English relative words, but the relative words that and while are not interrogative words, [c] and, in Standard English, what and how are mostly excluded from the relative words. [1]: 1053 Most or all of the archaic interrogative words are also relative words. [1]: 1046
Declarative content clauses can have a number of different grammatical roles. They often serve as direct objects of verbs of reporting, cognition, perception, and so on. In this use, the conjunction that may head the clause, but is often omitted:
Thus, discovering whether a graph has any odd cycles tells one whether it is bipartite and conversely. A philosopher [11] might characterize this state of affairs thus: "Although the concepts of bipartiteness and absence of odd cycles differ in intension, they have identical extension. [12]
The apparent gap between "is" statements and "ought" statements, when combined with Hume's fork, renders "ought" statements of dubious validity.Hume's fork is the idea that all items of knowledge are based either on logic and definitions, or else on observation.
Review the differences and choose the protocol that's right for your needs. Whether you decide on POP3 or IMAP to access your mail, you'll need to configure the email client with AOL settings. IMAP (Internet Messaging Access Protocol) • Emails are stored on the server. • Sent messages are stored on the server.
The detailed semantics of "the" ternary operator as well as its syntax differs significantly from language to language. A top level distinction from one language to another is whether the expressions permit side effects (as in most procedural languages) and whether the language provides short-circuit evaluation semantics, whereby only the selected expression is evaluated (most standard ...
A compromised (hacked) account means someone else accessed your account by obtaining your password. Spoofed email occurs when the "From" field of a message is altered to show your address, which doesn't necessarily mean someone else accessed your account. You can identify whether your account is hacked or spoofed with the help of your Sent folder.