Short Exact Sequences

Famous quotes containing the words short and/or exact:

“A short life and a merry one, my buck!
We used to say we’d hate to live dead-old,—
Yet now . . . I’d willingly be puffy, bald,
And patriotic.”
—Wilfred Owen (1893–1918)

“If we define a sign as an exact reference, it must include symbol because a symbol is an exact reference too. The difference seems to be that a sign is an exact reference to something definite and a symbol an exact reference to something indefinite.”
—William York Tindall (1903–1981)