Let alpha belongs to
- let alpha beta belongs to r
- let alpha beta belongs to n
- let alpha beta belongs to r be such that
- let alpha beta belongs to r be such that lim
- let alpha belongs to r
- let alpha belongs to 0 infinity
- let alpha belongs to r be such that the function
- let alpha belongs to (0 1)
- let alpha belongs to r and the three vectors
- let alpha belongs to (0 pi/2) be fixed
