“It must be granted that in every syllogism, considered as an argument to prove the conclusion, there is a petitio principii. When we say, All men are mortal Socrates is a man therefore Socrates is mortal; it is unanswerably urged by the adversaries of the syllogistic theory, that the proposition, Socrates is mortal.”
Quote by John Stuart Mill
Work
A System of Logic, Ratiocinative and Inductive: Being a Connected View of the Principles of Evidence, and the Methods of Scientific Investigation
This book is a foundational work in the field of logic, exploring the principles of evidence and the methods used in scientific investigation. more
Author
John Stuart Mill
John Stuart Mill was an influential British philosopher, economist, and logician. He is one of the most important figures in 19th-century philosophy and his ideas had a profound impact on political, social, and philosophical thought of the time. more
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