In contrast, the therefore sign $[\;\therefore\;]$ is traditionally used as a punctuation mark, and does not form part of a formula. It also refers to the "complementary" of the "therefore" symbol $\;\therefore\;$, namely the symbol $\;\because\;$, which denotes "because". Example: $\because$ All men are mortal. $\because$ Socrates is a man.

I've recently read a book which used the sign $\therefore$ (for "therefore"). It was more or less clear from the context what was meant, but I looked it up among the AMS LaTeX symbols just to be sure. They also listed the similar $\because$ ("because") sign. I might have seen this notation before, but very rarely if at all.

Apr 13, 2017 · $\begingroup$ @VerenaHaunschmid That site looks really cool, but I still can't get it to do anything more than three dots in horizontal line for the symbol in question :) Although, trying to draw the "therefore" sign I wound up with the "because" sign by accident lol $\endgroup$ –

Mar 3, 2019 · Whats the meaning of this symbol? Its a three dot symbol: ∴ I read a book, im could not find any definition of this symbol. This is about continuum property of the natural numbers and the archimed...

Jul 9, 2020 · The logical sign $~\therefore~$, known as the Therefore sign and also read therefore, generally used before a logical consequence, such as the conclusion of a syllogism. For example, $(a)~$ All humans are mortal.

$\begingroup$ The syntactic ambiguity is important, in my view amounting to slightly worse than ‹poor grammar› but possibly actually faulty semantics (failing to convey intended meaning while also plus valid).

May 12, 2016 · I see the symbol used, and I've never seen it logically defined. In words, It's defined as a symbol meaning 'therefore'. Because of a lack of definition, I have no idea why this is false: A B ∴C F...

Mar 29, 2023 · The symbols $\therefore,\,\because$, nowadays meaning therefore and because, have at times been used the other way round too for centuries, and Johann Rahn is credited with using $\therefore$ first, but I don't know why he made it look that way. $\endgroup$

Dec 26, 2015 · The notation $\therefore$ (written as \therefore) is shorthand for the word therefore. Since the symbol connects cause and effect, the symbol is pretty common and thus has a common abbreviation. This link has a list of more logic symbols, such as $\forall$ (for all). Also, the upside-down version of the symbol is used to mean "because"

Jul 27, 2017 · It still means 'therefore'. Sometimes a line is drawn under the premises to signal the end of the premises and say 'and now comes the conclusion'. I suppose / $\therefore$ is a bit of a redundant way of combining those two signals.