Question

what is a conterpositive statement.

Answer 1

Contrapositive is the inverse and converse combined.
The inverse of that statement would be 'If two lines do not intersect to form a right angle, then they are not perpendicular'
The converse of that statement would be 'If two lines are perpendicular, then they intersect to form a right angle.'
Soo, the contrapositive would be If two lines are not perpendicular, then they do not intersect to form a right angle.'

Answer 2

The contrapositive of a statement \(A⟹B \) is \(¬B⟹¬A\). The contrapositive of a true statement is always true.

Answer 3

so is this example right?

statement: if q then p

counterpostive: if not p then not q

Answer 4

thanks guys