Is there a built-in function "none"?

Question

I hope the question is not too foolish.

Is there a built-in R function that returns TRUE when all the cases are FALSE?

Similar to any() or all() but when, in the case of a logical vector of 2, TRUE TRUE returns FALSE, TRUE FALSE returns FALSE and FALSE FALSE returns TRUE.

I would call it none().

Answer 1

We can use ! with any

!any(c(FALSE, FALSE))

Answer 2

Negate(any) ?

> none <- Negate(any)
> none(c(TRUE,TRUE))
[1] FALSE
> none(c(TRUE,FALSE))
[1] FALSE
> none(c(FALSE,FALSE))
[1] TRUE