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+ OrdCalc
+ An interactive tool to understand the recursive ordinals
+
+'ord' is a program for understanding the recursive ordinals.
+It has a command line interpreter resembling command line calculators.
+
+See 'ordCalc.pdf' for a brief description of how to use the interpreter.
+See 'ordinal.pdf' for a description of the structure of the program and the
+theory on which it is based.