[04:45:32] @vrandecic "In Wikifunctions, the right fold function is the same as the reduce function with the difference that the reduce function gets a starting value as an argument" Not quite. Our Reduce is equivalent to *left* fold. Here are the tests that demonstrate this best: Z13427 Z13432 Z13433 [09:46:34] 8635 [13:19:32] there is a question about a university course that will happen in a month or so, can anybody from the community answer? https://www.wikifunctions.org/wiki/Wikifunctions:Project_chat#Python_course_at_the_university