html symbol math

1CHAR	NUMBER		ENTITY		DESCRIPTION
2∀		∀		∀	For all
3∂		∂		∂		Partial diffrential
4∃		∃		∃		The exists
5∅		∅		∅		Empty sets
6∇		∇		∇		Nabla
7∈		∈		∈		Element of
8∉		∉		∉		Not an element of
9∋		∋		∋		Contains a member
10∏		∏		∏		N-ary product
11∑		∑		∑		N-ary summation