inst_lift now fully instantiates context to avoid problems with loose bound variables
inst_lift now fully instantiates context to avoid problems with loose bound variables

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