Set of real numbers: Difference between revisions

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@@ Line 359: / Line 359: @@
 =={{header|Elena}}==
-ELENA 3.3 :
+ELENA 3.4 :
 <lang elena>import extensions.
@@ Line 365: / Line 365: @@
 {
     union : func
-        = (:val)( self eval:val || func eval:val ).
+        = (:val)( self(val) || func(val) ).
     intersection : func
-        = (:val)( self eval:val && func eval:val ).
+        = (:val)( self(val) && func(val) ).
     difference : func
-        = (:val)( self eval:val && func eval:val; not ).
+        = (:val)( self(val) && (func(val)) inverted ).
 }
-program =
+public program
 [
     // union
@@ Line 393: / Line 393: @@
     var set3 := (:x)( (x >= 0.0r) && (x < 3.0r) ) difference(:x) ( (x >= 0.0r) && (x <= 1.0r) ).
-    set3 (0.0r) assertFalse.
+    set3(0.0r) assertFalse.
-    set3 (1.0r) assertFalse.
+    set3(1.0r) assertFalse.
-    set3 (2.0r) assertTrue.
+    set3(2.0r) assertTrue.
-].</lang>
+]</lang>
 =={{header|Go}}==