Hey everyone!
I am currently exploring Sage's features and was wondering if there is something similar to Mathematica's replacement/transformation rules, which are (in my opinion) the strongest feature of Mathematica itself.
Thanks in advance for any answers!
PS: I would have liked to link on Wolfram's documentation page on Transformation rules but my Karma is insufficient for posting links, so in case you wonder what I mean by transformation rules, just give Google a hit.
