Reintroduce set_interpreter for Collect and op :. I removed them by accident when removing old code that dealt with the "set" type. Incidentally, there is still some broken "set" code in Refute that should be fixed (see TODO in refute.ML).
Reintroduce set_interpreter for Collect and op :.
I removed them by accident when removing old code that dealt with the "set" type.
Incidentally, there is still some broken "set" code in Refute that should be fixed (see TODO in refute.ML).

MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle