LogicRELEVANCE LOGICS
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RELEVANCE LOGICS

A relevance logic is motivated by the idea that the premises of a valid argument must be somehow “relevant” to its conclusion. The idea is motivated by the fact that…
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POST-KANTIAN PHILOSOPHY IN THE NINETEENTH CENTURY

Kant’s philosophy continued to dominate throughout the nineteenth century, although there were increasing concerns about the overall coherence of his system; in particular, there was doubt as to whether the…
Modern Branches of PhilosophyPhilosophy BranchesPHILOSOPHY OF MATHEMATICS
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PHILOSOPHY OF MATHEMATICS

The philosophy of mathematics is traditionally concerned with the ontological and epistemological foundations of mathematics. The two questions, of ontology and epistemology, are intimately related, as a satisfactory account of…
MEDIEVAL PHILOSOPHYHistory Of PhilosophyMEDIEVAL PHILOSOPHY
November 15, 2023

MEDIEVAL PHILOSOPHY

The Medieval Period is usually dated between the fall of the Western Roman Empire (476)and the beginning of the Renaissance (c. 1300). In terms of philosophy, the period begins inthe…
LogicPROPOSITIONAL CALCULUS (PROPOSITIONAL LOGIC)
November 15, 2023

PROPOSITIONAL CALCULUS (PROPOSITIONAL LOGIC)

The simplest formal (logical) language is the propositional calculus. This considers the logical relationships that hold between complete propositions.
LogicINTUITIONISM
November 15, 2023

INTUITIONISM

One of the most familiar non-classical logics is intuitionism, which, in simple terms, is based upon the rejection of the law of excluded middle: (P ∨ ¬P). There are both…
MEDIEVAL PHILOSOPHYHistory Of PhilosophySAINT AUGUSTINE
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SAINT AUGUSTINE

Like his contemporaries, Saint Augustine (354–430) was primarily influenced by Neoplatonism, and, indeed, credited Plotinus with helping him to understand Christian theology.
History Of PhilosophyPYTHAGOREANISM
November 15, 2023

PYTHAGOREANISM

Based on the teachings of Pythagoras (c. 570–495 BC) and the school he established inCroton in southern Italy, we may conclude that, in many ways, Pythagoreanism was more ofa mystery…
History Of PhilosophyANALYTIC PHILOSOPHYORDINARY LANGUAGE PHILOSOPHY
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ORDINARY LANGUAGE PHILOSOPHY

Between the 1940s and the 1960s, analytic philosophy shifted away from investigating the (supposed) underlying logical structure of language. While it was still primarily concerned with conceptual analysis, this was…
CLASSICAL PHILOSOPHYHistory Of PhilosophySKEPTICISM (PYRRHONISM)
November 15, 2023

SKEPTICISM (PYRRHONISM)

Pyrrhonian Skepticism was founded by Pyrrho of Elis (c. 360–275 BC), who argued that knowledge is impossible. The Skeptics proposed various arguments for their conclusions, including Platonic doubts about the…
PHILOSOPHICAL BOOKS AND TEXTESSENTIAL READING IN THE HISTORY OF PHILOSOPHY
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A comprehensive list of essential readings in the history of philosophy.
Writing PhilosophyESSENTIAL WRITING SKILLS
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ESSENTIAL WRITING SKILLS

Having just walked through the basic process of writing a philosophy paper, we turn now to the essential skillset you should develop and apply not only to the writing of…
FORMS OF PHILOSOPHICAL WRITINGWriting PhilosophyFORMS OF PHILOSOPHICAL WRITING
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FORMS OF PHILOSOPHICAL WRITING

The word essay comes from the French infinitive verb essayer, meaning “to try” or “to attempt.” In fact, when the word was first borrowed into the English language, as essay,…
POST-KANTIAN PHILOSOPHYHistory Of PhilosophyHEGELIANISM
November 15, 2023

HEGELIANISM

One common theme in post-Kantian philosophy was an attempt to overcome the remaining divisions between noumena and phenomena, and to reconcile the distinct faculties of sensibility and understanding in to…
PHILOSOPHICAL BOOKS AND TEXTINTRODUCTORY PHILOSOPHY TEXTS
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INTRODUCTORY PHILOSOPHY TEXTS

There is no substitute for grappling primary sources. Nevertheless, secondary sources—including scholarly research, literary reviews, historical summaries—are valuable tools. They not only show you how you can begin thinking about…

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Terms & Concepts

A

Analytic philosophy

The twentieth-century philosophical movement (active predominantly in the United Statesand Britain) that focuses primarily on language and linguistic analysis; opposed to AbsoluteIdealism. https://youtube.com/shorts/m3Vj8sB1fH4?feature=share
P

Preestablished harmony

Gottfried Wilhelm Leibniz’s (1646-1716) view of the universe as ordered by God. https://youtube.com/shorts/zjbIvhszGG4?feature=share
T

Theism

The belief in God. https://youtube.com/shorts/FO1RZp4M6XY?feature=share
N
Necessary and sufficient condition
T
Thick concept
N
Natural law theory
C
Consequent
H
Hasty generalization
E
E-proposition
H
Hypothetico-Deductive Method
E
Epicureanism
C
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