It is NOT the case that "Cats should be let outside"
"If a cat is not let outside, it won't kill birds"
"If a cat won't kill birds, it is not the case that the cat can be considered invasive"
The statement above appears in challenges, supports, or specifications of other statements.
To show you're not a robot, answer the following question:
What is 4 + 4?
What is 8 + 6?
What is 6 + 3?