solve(piecewise(Or(x=1,x=2),1,0)=1);

                       {x = 1}, {x = 2, x <> 1}

The expected answer is 1, 2. That would be consistent with

solve(piecewise(Or(x=1),1,0)=1);

                                  1

solve(piecewise(x=1,1,0)=1);

                                  1

Alec


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