--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Prover/Sequents.pizza	Thu Mar 15 10:07:28 2012 +0000
@@ -0,0 +1,29 @@
+package G4ip;
+
+import G4ip.Form.*;
+
+/** An intuitionistic sequent of the form     
+  *  "Gamma => G".
+  */
+public class Sequent  {
+  /** Goal formula on the right-hand side. */
+  public Form    G;       
+  /** Context (multiset of formulae) on the left-hand side. */
+  public Context Gamma;   
+
+  public Sequent(Context init_Gamma, Form init_G) {
+        G = init_G;
+    Gamma = new Context(init_Gamma);
+  }
+
+  public Sequent(Sequent sequ) {
+        G = sequ.G;
+    Gamma = new Context(sequ.Gamma);
+  }
+
+  /** Prints a sequent.  */
+  public String toString() {
+    String s = Gamma.makeString() +  " => " + G.toString();
+    return s;
+  }
+}