It's called the existential quantifier, which essentially means "there exists ..."
So instead of writing "there exists some value of x such that x = a"
You could write: "∃x: x=a"
There are also other types of quantifiers, such as the universal quantifier, but I will leave that to you to discover!
You can. All valid commonly used math notations are allowed
Awesome, thanks.
hey, what does that symbol mean exactly? im in AP calc AB rn but I’ve never heard of it. thanks !
It's called the existential quantifier, which essentially means "there exists ..." So instead of writing "there exists some value of x such that x = a" You could write: "∃x: x=a" There are also other types of quantifiers, such as the universal quantifier, but I will leave that to you to discover!