Closed nbloomf closed 6 years ago
In section 2.3 on substitution, since quantifiers were introduced a few sections prior, I think it makes sense to talk about the difference between free and bound variables. (Since the audience may not have seen this before.)
I think it will be a bit distracting. We already introduce these in 3.1.1, and your PR additionally polishes that part :)
In section 2.3 on substitution, since quantifiers were introduced a few sections prior, I think it makes sense to talk about the difference between free and bound variables. (Since the audience may not have seen this before.)