you have a matrix, one axis is names of programming languages and the other axis is names of things a language can do the entries are 0 or 1. If language L ca

you have a matrix, one axis is names of programming languages and the other axis is names of things a language can do the entries are 0 or 1. If language L can do thing T, then there is a 1 in in cell L,T. Otherwise there is a 0. For example, a thing could be, "you can feed it a math text and it will give a list of defined terms and expand the definition of any term in the list in the signature {<-}.