This fixes the problem in a non-superficial way, but there is an underlying issue of how best to order/process args to get the best simplification in combsimp.
You can merge this Pull Request by running: git pull https://github.com/smichr/sympy combsimp Or you can view, comment on it, or merge it online at: https://github.com/sympy/sympy/pull/1462 -- Commit Summary -- * _sorted_args defined for Add, Mul, Atom * randomization: combsimp -- File Changes -- M sympy/core/add.py (5) M sympy/core/basic.py (8) M sympy/core/mul.py (7) M sympy/core/tests/test_basic.py (2) M sympy/simplify/simplify.py (35) M sympy/simplify/tests/test_simplify.py (2) -- Patch Links -- https://github.com/sympy/sympy/pull/1462.patch https://github.com/sympy/sympy/pull/1462.diff --- Reply to this email directly or view it on GitHub: https://github.com/sympy/sympy/pull/1462 -- 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 https://groups.google.com/groups/opt_out.