"If Tom buys a red skateboard, then Amanda buys green in-line skates." Which statement below is logically equivalent?
If Amanda does not buy green in-line skates, then Tom does not buy a red skateboard.
If Tom does not buy a red skateboard, then Amanda does not buy green in-line skates
If Amanda buys green in-line skates, then Tom buys a red skateboard.
If Tom buys a red skateboard, then Amanda does not buy green in-line skates.