Erin is red. If something is red then it is quiet. Quiet things are blue. Furry, blue things are rough.
Erin is red.
("Erin" "is" "red" "+")
If something is red then it is quiet.
((("something" "is" "red" "+")) -> ("something" "is" "quiet" "+"))
Quiet things are blue.
((("something" "is" "quiet" "+")) -> ("something" "is" "blue" "+"))
Furry, blue things are rough.
((("something" "is" "furry" "+") ("something" "is" "blue" "+")) -> ("something" "is" "rough" "+"))
Erin is red.
True
1
proof
[(triple1)]
("Erin" "is" "red" "+")
triple1
Erin is not red.
False
1
inv-proof
[(triple1)]
("Erin" "is" "red" "-")
triple1
Erin is quiet.
True
2
proof
[(((triple1) -> rule1))]
("Erin" "is" "quiet" "+")
((triple1) -> (rule1 % int1))
Erin is quiet.
("Erin" "is" "quiet" "+")
int1
Erin is not quiet.
False
2
inv-proof
[(((triple1) -> rule1))]
("Erin" "is" "quiet" "-")
((triple1) -> (rule1 % int1))
Erin is quiet.
("Erin" "is" "quiet" "+")
int1
Erin is blue.
True
3
proof
[(((((triple1) -> rule1)) -> rule2))]
("Erin" "is" "blue" "+")
((((triple1) -> (rule1 % int2))) -> (rule2 % int1))
Erin is blue.
("Erin" "is" "blue" "+")
int1
Erin is quiet.
("Erin" "is" "quiet" "+")
int2
Erin is not blue.
False
3
inv-proof
[(((((triple1) -> rule1)) -> rule2))]
("Erin" "is" "blue" "-")
((((triple1) -> (rule1 % int2))) -> (rule2 % int1))
Erin is blue.
("Erin" "is" "blue" "+")
int1
Erin is quiet.
("Erin" "is" "quiet" "+")
int2
Erin is not rough.
Unknown
inv-rconc
[@1: Erin is rough.[CWA. Example of deepest failure = (rule3 <- FAIL)]]
("Erin" "is" "rough" "-")
Erin is round.
Unknown
random
[@0: Erin is round.[CWA. Example of deepest failure = (FAIL)]]
("Erin" "is" "round" "+")
Erin is not white.
Unknown
inv-random
[@0: Erin is white.[CWA. Example of deepest failure = (FAIL)]]
("Erin" "is" "white" "-")
Erin is furry.
Unknown
random
[@0: Erin is furry.[CWA. Example of deepest failure = (FAIL)]]
("Erin" "is" "furry" "+")
@0: Erin is red.[(triple1)] @1: Erin is quiet.[(((triple1) -> rule1))] @2: Erin is blue.[(((((triple1) -> rule1)) -> rule2))]
Erin is red.
("Erin" "is" "red" "+")
triple1
Erin is quiet.
("Erin" "is" "quiet" "+")
((triple1) -> (rule1 % int1))
Erin is quiet.
("Erin" "is" "quiet" "+")
int1
Erin is blue.
("Erin" "is" "blue" "+")
((((triple1) -> (rule1 % int2))) -> (rule2 % int1))
Erin is blue.
("Erin" "is" "blue" "+")
int1
Erin is quiet.
("Erin" "is" "quiet" "+")
int2