Dave is not smart. Harry is kind. Young, nice things are blue. If something is blue then it is not smart.
Dave is not smart.
("Dave" "is" "smart" "-")
Harry is kind.
("Harry" "is" "kind" "+")
Young, nice things are blue.
((("something" "is" "young" "+") ("something" "is" "nice" "+")) -> ("something" "is" "blue" "+"))
If something is blue then it is not smart.
((("something" "is" "blue" "+")) -> ("something" "is" "smart" "-"))
Dave is not smart.
True
1
proof
[(triple1)]
("Dave" "is" "smart" "-")
triple1
Dave is smart.
False
1
inv-proof
[(triple1)]
("Dave" "is" "smart" "+")
triple1
Harry is not blue.
Unknown
inv-rconc
[@1: Harry is blue.[CWA. Example of deepest failure = (rule1 <- FAIL)]]
("Harry" "is" "blue" "-")
Dave is young.
Unknown
random
[@0: Dave is young.[CWA. Example of deepest failure = (FAIL)]]
("Dave" "is" "young" "+")
@0: Dave is not smart.[(triple1)] Harry is kind.[(triple2)]
Dave is not smart.
("Dave" "is" "smart" "-")
triple1
Harry is kind.
("Harry" "is" "kind" "+")
triple2