LogicPREDICATE CALCULUS (PREDICATE LOGIC)
November 15, 2023

PREDICATE CALCULUS (PREDICATE LOGIC)

The next development of the propositional calculus is the predicate calculus. This considers the logical relationships that hold between predicate expressions, along with the quantifiers ∃x (“there is at least…
Writing PhilosophyWRITING PHILOSOPHY
November 24, 2023

WRITING PHILOSOPHY

How Do You Do Philosophy? Writing Is Central To Philosophy What Philosophy Professors Want From Student Writers What Is Good Writing? What Is Good Philosophical Writing? Grading Criteria for Philosophy…
CONTINENTAL PHILOSOPHYHistory Of PhilosophyEXISTENTIALISM
November 15, 2023

EXISTENTIALISM

A broad philosophical and literary movement that flourished during the first half of the twentieth century, Existentialism emphasized the uniqueness of human experience over the generalizations of traditional scientific or…
PHILOSOPHICAL BOOKS AND TEXTINTRODUCTORY LOGIC TEXTS
November 27, 2023

INTRODUCTORY LOGIC TEXTS

There are some fairly firm distinctions between critical thinking and formal (symbolic) logic texts. Whereas critical thinking focuses broadly on argumentation, formal logic is the study of the principles of…
Modern Branches of PhilosophyPhilosophy BranchesPHILOSOPHY OF LANGUAGE
November 14, 2023

PHILOSOPHY OF LANGUAGE

The study of natural languages is conventionally divided among questions of syntax, semantics, and pragmatics, all of which raise significant issues for the philosophy of language. In terms of syntax…
PHILOSOPHICAL BOOKS AND TEXTCRITICAL THINKING AND LOGIC TEXTBOOKS
November 27, 2023

CRITICAL THINKING AND LOGIC TEXTBOOKS

Textbooks on critical thinking and logic.
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…
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…
CLASSICAL PHILOSOPHYHistory Of PhilosophySTOICISM
November 15, 2023

STOICISM

Founded by Zeno of Citium (334–262 BC), early Stoicism shared many similarities with Epicureanism, including the belief that the world was largely deterministic and that the overall goal of the…
NON-WESTERN PHILOSOPHICAL TRADITIONSHistory Of PhilosophyAFRICAN PHILOSOPHY
November 15, 2023

AFRICAN PHILOSOPHY

The earliest indigenous African philosophy to produce written documents emerged during the seventeenth century, especially in Ethiopia. Zera Yacob (1599–1692), whose Hatata (1667) has been compared to René Descartes’ Discourse…
LogicMANY-VALUE LOGICS
November 15, 2023

MANY-VALUE LOGICS

In the classical logics already discussed, the logical connectives are taken to be bivalent—that is, they allow of only two different truth values: true and false. One natural extension to…
History Of PhilosophyANALYTIC PHILOSOPHYORDINARY LANGUAGE PHILOSOPHY
November 15, 2023

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…
Writing PhilosophyESSENTIAL WRITING SKILLS
November 21, 2023

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 PhilosophyTHE ESSAY OF REFUTATION
November 20, 2023

THE ESSAY OF REFUTATION

The essay of refutation takes the position “I disagree.” Its objective is to persuade the reader that the argument of another is false, flawed, unlikely, implausible, or in some other…
History Of PhilosophyTHE SOPHISTS
November 15, 2023

THE SOPHISTS

The Sophists were not a single school but a professional grouping of largely itinerant teachers of rhetoric, philosophy, and legal argumentation. Their importance lies not in any specific doctrines but…

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Terms & Concepts

L

Logical equivalence (logically equivalent statements)

Two statements are logically equivalent if they have the same truth values in all possible circumstances. It is never the case that one of the statements is true while the…
A

Appeal to pity (ad misericordiam)

An informal fallacy constituted by imploring someone to accept a claim on the basis of pity, rather than relevant reasons. https://youtube.com/shorts/mqmat_UhL9I?feature=share
T

Truth table

A method of demonstrating how a statement’s truth value is built up from an atomic or simple sentence and the operation of the (main) connective. https://youtube.com/shorts/Qq98IsjJpG4?feature=share
S
Subaltern
E
Existential import
S
Samsara
E
Empirical
L
Logical contradiction
S
Self-contradictory
P
Predestination
G
Generalization from experience (or Inductive generalization)
L
Logical consequence
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