Friedrich Ludwig Gottlob Frege was a German philosopher, logician, and mathematician.
A philosopher is someone who practices philosophy, which involves rational inquiry into areas that are outside of either theological dogma or science.
Logic originally meaning the word, or what is spoken, is generally held to consist of the systematic study of the form of arguments.
Ayer on Frege and Russell: Section 1 by flame0430
Considered a major figure in mathematics, he is responsible for the development of modern logic and making contributions to the foundations of mathematics.
Foundations of mathematics is the study of the logical and philosophical basis of mathematics, or, in a broader sense, the mathematical investigation of what underlies the philosophical theories concerning the nature of mathematics.
A mathematician is someone who uses an extensive knowledge of mathematics in his/her work, typically to solve mathematical problems.
Mathematics is the study of topics such as quantity, structure, space, and change.
Ayer on Frege and Russell: Section 4 by flame0430
He is also understood by many to be the father of analytic philosophy, where he concentrated on the philosophy of language and mathematics.
Language is the ability to acquire and use complex systems of communication, particularly the human ability to do so, and a language is any specific example of such a system.
Philosophy of language is concerned with four central problems: the nature of meaning, language use, language cognition, and the relationship between language and reality.
Analytic philosophy is a style of philosophy that became dominant in English-speaking countries at the beginning of the 20th century.
Though largely ignored during his lifetime, Giuseppe Peano and Bertrand Russell introduced his work to later generations of logicians and philosophers.
Bertrand Arthur William Russell, 3rd Earl Russell, OM, FRS was a British philosopher, logician, mathematician, historian, writer, social critic, political activist and Nobel laureate.