@gav @genmaicha @karna btw gav you should read wikipedia like this:

1. scroll past the intro section and look for a definition section
2. if there is something that syntactically looks like a math definition (reasonably short, symbols are defined and then used in some statement), then read it
3. if there is no definition section or the """definition""" is not actually a definition, then curse the Marxist Left and move on

this has made my life better