EDIT: I hope these help: https://secure.wikimedia.org/wikipedia/en/wiki/Table_of_mathematical_symbols https://secure.wikimedia.org/wikipedia/en/wiki/Table_of_m

EDIT: I hope these help: https://secure.wikimedia.org/wikipedia/en/wiki/Table_of_mathematical_symbols https://secure.wikimedia.org/wikipedia/en/wiki/Table_of_math... https://secure.wikimedia.org/wikipedia/en/wiki/List_of_logic_symbols https://secure.wikimedia.org/wikipedia/en/wiki/List_of_logic...