<P> In logical argument and mathematical proof , the therefore sign ( ∴ ) is generally used before a logical consequence , such as the conclusion of a syllogism . The symbol consists of three dots placed in an upright triangle and is read therefore . It is encoded at U + 2234 ∴ therefore ( HTML & # 8756 ; &there4 ; ) . For common use in Microsoft Office hold the ALT key and type `` 8756 '' . While it is not generally used in formal writing , it is used in mathematics and shorthand . It is complementary to U + 2235 ∵ because ( HTML & # 8757 ; ) . </P>
what do the 3 dots mean in math
the therefore sign