Apr 2, 2017 · 7 Properly speaking, "For all $i$ from $1$ to $n$" is perfectly legitimate mathematics, and is often preferable from the standpoint of exposition. For example, it might be preferable when writing …

Jun 19, 2012 · Is there a mathematical symbol that means "For every element"? I want the meaning to have similar function as an iteration, say for loop.

Jun 25, 2014 · I have started seeing the "∈" symbol in math. What exactly does it mean? I have tried googling it but google takes the symbol out of the search.

Oct 15, 2018 · 8 The symbol $\forall$ means "for all." The symbol $\in$ means "in" or is an element of. In your context, it means for all $a$ and $b$ in $S$.

How would a statement beginning, "For all $x$ in set $S$ except $x=a$..." be translated into symbolic predicate logic? I'm somewhat of a purist in symbols and am less ...

May 16, 2016 · That is the first applies the function to every element regardless of the result of the function, and the latter applies the function lazily, until it returns true. My question is: Is the universal …

In mathematical notation, what are the usage differences between the various approximately-equal signs "≈", "≃", and "≅"? The Unicode standard lists all of them inside the Mathematical Operators B...

Nov 5, 2020 · In footnote 4 on that page, Gentzen explains how he came to use the sign. It is the "All-Zeichen," an analogy with the symbol for existence for the existential quantifier which Gentzen says …

Same ambiguity is in math, since math did not come from nothing, rather it is a notation system for the language. However: Some times "any" is used for the meaning of "any" and not "exist" or "all". For …

Jan 11, 2016 · However, an argument can be made that 3 includes 'for' twice, one as a text and one in the $\forall$ symbol. (In fact, a referee recently pointed me to a 'typo' when I used the third formulation.)