Reverse the result: !
On top of the & and | operators, you also learned about the ! operator, which negates a logical value. To refresh your memory, here are some R expressions that use !. They all evaluate to FALSE:
!TRUE
!(5 > 3)
!!FALSE
What would the following set of R expressions return?
x <- 5
y <- 7
!(!(x < 4) & !!!(y > 12))
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