# after+every+deduction

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**Augustus De Morgan**— (1806 1871) Born 27 June 1806( …72

**Mathematical logic**— (also known as symbolic logic) is a subfield of mathematics with close connections to foundations of mathematics, theoretical computer science and philosophical logic.[1] The field includes both the mathematical study of logic and the… …73

**Propaganda**— This article is about the form of communication. For other uses, see Propaganda (disambiguation). French Military Propaganda postcard showing a caricature of Kaiser Wilhelm II biting the world (c. 1915) …74

**Taxation in the United States**— is a complex system which may involve payment to at least four different levels of government and many methods of taxation. United States taxation includes local government, possibly including one or more of municipal, township, district and… …75

**Theorem**— The Pythagorean theorem has at least 370 known proofs[1] In mathematics, a theorem is a statement that has been proven on the basis of previously established statements, such as other theorems, and previously accepted statements …76

**Peirce, Charles Sanders**— American pragmatism Peirce Cheryl Misak INTRODUCTION Charles Sanders Peirce (1839–1914), one of America’s greatest philosophers, mathematicians, and logicians, was a difficult and not altogether pleasant character. That, combined with what the… …77

**Algorithm**— Flow chart of an algorithm (Euclid s algorithm) for calculating the greatest common divisor (g.c.d.) of two numbers a and b in locations named A and B. The algorithm proceeds by successive subtractions in two loops: IF the test B ≤ A yields yes… …78

**QI**— For other uses, see Qi (disambiguation). QI The QI logo Also known as Quite Interesting QI XL (extended repeats) QI VG (compilation episodes) Genre Comedy …79

**Interpretation (logic)**— An interpretation is an assignment of meaning to the symbols of a formal language. Many formal languages used in mathematics, logic, and theoretical computer science are defined in solely syntactic terms, and as such do not have any meaning until …80

**Epistemic modal logic**— is a subfield of modal logic that is concerned with reasoning about knowledge. While epistemology has a long philosophical tradition dating back to Ancient Greece, epistemic logic is a much more recent development with applications in many fields …