Mathematical Basis for Learning Relativity

[gordonj005]

Hi,

I seem to remember there is a book by Steven Weinberg that gives the mathematical basis for tensor calculus for relativity, but the name escapes me. Anyone know what I'm talking about?

 

[atyy]

http://books.google.com/books/about/Gravitation_and_cosmology_principles_and.html?id=XLbvAAAAMAAJ ?