I am fighting with various bugs involving substitution / composing into polynomials, mostly involving the InfinitePolynomialRIng, for example https://github.com/sagemath/sage/issues/37047
I would appreciate help *a lot*. The background is, that I have mostly implemented a solver for lazy series given implicitly by a list of equations. It works now for univariate series, but it would be really cool if I could get to work also for multivariate series and symmetric functions. See https://github.com/sagemath/sage/pull/37033 Although it is not completely obvious that this will eventually work, it is quite obvious that it won't work as long as we don't get sage to compose polynomials correctly. Best wishes, Martin -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/0bc36ade-2e0f-47f5-a259-57cc2d7c3734n%40googlegroups.com.