# Spacing with tilde

When I type

$i\tilde{=} j$

the spacing is less than

$i=j$

i.e. the i, \tilde{=}, and j all appear next to each other without space. How can I change it back to normal spacing?

• You probably want \cong instead of \tilde{=} – egreg Aug 5 '16 at 9:48

Using $i\mathrel{\tilde{=}}j$ would solve the spacing problem, but the correct symbol is \cong:
$i \cong j$