# Sequence Spaces

1. Aug 14, 2008

### olliemath

I'm currently studying Intro to Tensor Products of Banach Spaces by Ryan. In it he makes the off-hand remark

Is it? Does anyone know what this result is called, or where I can find a proof of it?
The fact that a separable Banach space is a quotient of $$\ell_1(\mathbb{N})$$ is pretty well-known, and a proof can be found for example on pages 103-104 of