Bob is quiet. If something is rough and round then it is quiet.
Bob is quiet.
("Bob" "is" "quiet" "+")
If something is rough and round then it is quiet.
((("something" "is" "rough" "+") ("something" "is" "round" "+")) -> ("something" "is" "quiet" "+"))
Bob is quiet.
True
1
proof
[(triple1)]
("Bob" "is" "quiet" "+")
triple1
Bob is not quiet.
False
1
inv-proof
[(triple1)]
("Bob" "is" "quiet" "-")
triple1
Bob is not kind.
Unknown
inv-random
[@0: Bob is kind.[CWA. Example of deepest failure = (FAIL)]]
("Bob" "is" "kind" "-")
Bob is rough.
Unknown
random
[@0: Bob is rough.[CWA. Example of deepest failure = (FAIL)]]
("Bob" "is" "rough" "+")
@0: Bob is quiet.[(triple1)]
Bob is quiet.
("Bob" "is" "quiet" "+")
triple1