Add option for proof direction

2020-05-07 02:53:48 +02:00
parent b4339bfcb3
commit b55bc82b1d
7 changed files with 69 additions and 12 deletions
--- a/src/output/tptp.rs
+++ b/src/output/tptp.rs
@@ -340,8 +340,7 @@ where
 			let is_right_term_arithmetic = crate::is_term_arithmetic(right, self.context)
 				.expect("could not determine whether term is arithmetic");

-			match (!is_left_term_arithmetic && !is_right_term_arithmetic,
-				auxiliary_predicate_name)
+			match (!is_left_term_arithmetic || !is_right_term_arithmetic, auxiliary_predicate_name)
 			{
 				(true, Some(auxiliary_predicate_name)) =>
 				{