Metal spaces of varying widths. 1, 2, 3 or 4 em used for filling blanks in pages or formes,
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The group G/N whose elements are the cosets of N in C, where N is a normal subgroup of G. The product of two cosets is defined to be equal to the coset which contains the product of an element of the first coset and an element of the second. Also factor group.
The rule used in differentiating the quotient of two differentiable functions f and g: