Support empty n-aries

2020-04-08 12:09:27 +02:00
parent 51cbdb313f
commit 9a8013f1cb
2 changed files with 57 additions and 45 deletions
--- a/src/ast.rs
+++ b/src/ast.rs
@@ -486,8 +486,6 @@ impl Formula
 {
 	pub fn and(arguments: Formulas) -> Self
 	{
-		assert!(!arguments.is_empty());
-
 		Self::And(arguments)
 	}

@@ -537,8 +535,6 @@ impl Formula

 	pub fn if_and_only_if(arguments: Formulas) -> Self
 	{
-		assert!(!arguments.is_empty());
-
 		Self::IfAndOnlyIf(arguments)
 	}

@@ -570,8 +566,6 @@ impl Formula

 	pub fn or(arguments: Formulas) -> Self
 	{
-		assert!(!arguments.is_empty());
-
 		Self::Or(arguments)
 	}