Toggling line numbers in vimrc doesn't work

Question

I'm new to vim. I'm using MacVim.

I use

:set number

which shows line numbers.

I've added

set number

to my vimrc, to make show line numbers by default.

My vimrc:

no <down> <Nop>
no <left> <Nop>
no <right> <Nop>
no <up> <Nop>
ino <down> <Nop>
ino <left> <Nop>
ino <right> <Nop>
ino <up> <Nop>
set number

But line numbers don't show up.

Everything in vimrc except set number works fine. What am I doing wrong?

Answer 1

Problem was that I had one .vimrc in the ~/ and one in the ~/.vim/.vimrc. The one that was in the ~/ was overriding the one in in ~/.vim/.vimrc.