Don't use a set() for LatticeOp()'s args as the order comes out hash dependent. Instead, use a tuple, don't sort the args, but still remove duplicates.
We need to override __eq__ so that And(x, y) == And(y, x) remains satisfied. You can merge this Pull Request by running: git pull https://github.com/jrioux/sympy randomhash Or you can view, comment on it, or merge it online at: https://github.com/sympy/sympy/pull/1401 -- Commit Summary -- * And(), Or(), etc. should be hash independent. -- File Changes -- M sympy/core/logic.py (15) M sympy/core/operations.py (38) M sympy/core/tests/test_operations.py (9) M sympy/functions/elementary/miscellaneous.py (2) M sympy/logic/boolalg.py (23) M sympy/logic/utilities/dimacs.py (2) M sympy/printing/str.py (2) M sympy/printing/tests/test_lambdarepr.py (4) M sympy/solvers/inequalities.py (2) M sympy/solvers/solvers.py (2) M sympy/stats/crv_types.py (2) M sympy/stats/frv.py (3) -- Patch Links -- https://github.com/sympy/sympy/pull/1401.patch https://github.com/sympy/sympy/pull/1401.diff --- Reply to this email directly or view it on GitHub: https://github.com/sympy/sympy/pull/1401 -- You received this message because you are subscribed to the Google Groups "sympy-patches" group. To post to this group, send email to sympy-patches@googlegroups.com. To unsubscribe from this group, send email to sympy-patches+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy-patches?hl=en.
