generate questions: In addition to numerous articles on mathematics, Whitehead wrote three major books on the subject: A Treatise on Universal Algebra (1898), Principia Mathematica (co-written with Bertrand Russell and published in three volumes between 1910 and 1913), and An Introduction to Mathematics (1911). The former two books were aimed exclusively at professional mathematicians, while the latter book was intended for a larger audience, covering the history of mathematics and its philosophical foundations. Principia Mathematica in particular is regarded as one of the most important works in mathematical logic of the 20th century.
What was Whitehead's first published book on mathematics? {sep_token} With what mathematician and philosopher did Whitehead collaborate to write Principia Mathematica? {sep_token} Who was the intended audience of Whitehead's first two mathematics books? {sep_token} What was Whitehead's final book on mathematics? {sep_token} What is the significance of Principia Mathematica currently? {sep_token} What did Whitehead publish numerous articles about? {sep_token} How many books on mathematics did Whitehead write? {sep_token} Who co-wrote Principia Mathematica with Whitehead? {sep_token} Which of Whitehead's books is known as one of the most important works in mathematical logical? {sep_token} When did Whitehead write his first book? {sep_token}