<we><edit> <!-- questions and answers -->
atheism
philosophy-of-language
truth
existentialism
nihilism
qualia
kant
philosophy-of-economics
hegel
nietzsche
history-of-philosophy
mind-body
dualism
empiricism
ethics
scientific-method
phenomenology
goedel
ancient-philosophy
definitions
philosophy-of-physics
utilitarianism
self
reference-request
idealism
logic
Natural deduction introduction and elimination rules for modal quantifiers
logic
reference-request
modal-logic
Is there a deduction analog to the problem of induction?
logic
induction
deduction
reason
Does Pascal's Wager contain any logical flaws or fallacies?
logic
theology
reference-request
pascal
Are there degrees of truth ?
logic
Is Euclid's syllogistic approach to proving mathematical theorems logically insufficient?
logic
philosophy-of-mathematics
syllogism
why is it impossible to predict or foresee the future but if can what is the closest method to do so
logic
kant
perception
Why did we define vacuous statements as true rather than false?
logic
philosophy-of-logic
definitions
Logical equivalence
logic
What is behind Girard's idea of distinguishing implication ( ⇒) and entailment (⊢) without separating language and meta-language?
logic
proof
Is this a correct symbolic formulation of the idea that one symbol can't mean two different things (in one system)?
logic
Is saying "There would be no rich without the poor" a false dichotomy?
logic
fallacies
Does anyone know of a philosophy which rectifies or considers the following question?
logic
fallacies
proof
paradox
scepticism
formal logic, fitch exercise
logic
how to prove from ~ (A ∩ B) that ~A∩~B?
logic
proof
symbolic-logic
Write down a sentence that is a contradiction if and only if the argument ‘X, therefore Y’ is valid
logic
argumentation
Does the imperfection of man imply the imperfection of God?
logic
ethics
Ad baculum fallacy: is there a distinction between a direct threat and an appeal to an external one?
logic
fallacies
argumentation
The Truth-Falsehood Dichotomy and Logic
logic
truth
philosophy-of-logic
Logical fallacy: when you know the outcome, so you cannot see any other possible ex ante prediction
logic
philosophy-of-science
fallacies
argumentation
How can I explain the distribution of an O proposition's predicate?
logic
syllogism
Is there anyone who believe that all modal statements are meaningless or trivial?
logic
modal-logic
philosophy-of-logic
possible-worlds
Aristotles Categories
logic
aristotle
Getting started with reading papers in (philosophical) logic
logic
modal-logic
philosophy-of-logic
symbolic-logic
List of Logic Symbols
logic
Can 2 logical deductions starting from 2 different and independent sets of assumptions lead to 2 contradictory conclusions?
logic
philosophy-of-logic
Semantic Values of Sentences
logic
philosophy-of-language
semantics
linguistics
Where in the evolutionary chain did morality start to evolve?
logic
theology
atheism
creationism
How many valid categorical syllogisms are there?
logic
syllogism
Do α and β entail each other?
logic
proof
Apart from clarification, what are some uses of formal logic in philosophy?
logic
philosophy-of-language
What is the fallacy in comparing evolution to a fairy tale?
logic
fallacies
Why contradictions imply anything
logic
Does transposition of the premises preserve validity in categorical syllogisms?
logic
syllogism
can we reason about logic?
logic
philosophy-of-mathematics
Quantificational Logic Question (Determining Truth-Values)
logic
quantification
Necessary or Sufficient
logic
critical-thinking
Question on instantiation
logic
Is it certain that aliens exist in an infinite universe?
logic
philosophy-of-science
philosophy-of-mathematics
probability
universe
Reduced model of society
logic
What is an appropriate way to solve a Mill's method table, if it exists?
logic
induction
john-stuart-mill
Logic and reason is circular reasoning..?
logic
debate
reason
need help translating the following sentence to first order logic with identity and functions
logic
How fundamental is logic?
logic
fundamental-entities
Is there a logical symbol for "why"?
logic
symbolic-logic
Mathematical Logic by Elliott Mendelson
logic
Is religion fundamentally problematic for logical decision making in society?
logic
society
introduction to modal logic
logic
modal-logic
Are omniscience and omnipotence mutually inconsistent?
logic
philosophy-of-religion
dawkins
Suspending some of the usual laws of logic
logic
Is there an explanation of how logic works?
logic
How to valuate (assign truth values to) a formula in modal logic (Kripke model)
logic
modal-logic
possible-worlds
kripke
Is finding truth possible?
logic
truth
paradox
philosophy-of-logic
Is the phrase "trust but verify" self-contradictory?
logic
thought-experiment
Proof that the rules of logic are true
logic
philosophy-of-mathematics
Can I get help translating the following English sentences to first order logic sentences with identity
logic
Using deductive logic
logic
Can there only be one success in an infinite amount of trials?
logic
philosophy-of-mathematics
probability
Question about Syllogisms
logic
syllogism
logical fallacy: X is not wrong, if you have done X
logic
fallacies
Do premises in modus tollendo tollens arguments require greater certainty than others?
logic
probability
syllogism
Do "if everybody did it" arguments commit a fallacy?
logic
ethics
fallacies
Someone said argument A, the other heard argument A', is that a fallacy?
logic
ethics
fallacies
philosophy-of-language
argumentation
Does this make sense? Is it a contradiction? If a triangle has 2 sides, then it wouldn't be a triangle
logic
terminology
The difference between indicative conditional and counterfactual
logic
modal-logic
semantics
Logic and Computation : a philosophical viewpoint
logic
reference-request
philosophy-of-logic
computation
Is something creating itself nonsense?
logic
philosophy-of-science
Comparison of unlike things - Being Logical
logic
Dictionary English - logic/formal symbols/expresssions
logic
philosophy-of-language
terminology
What are the differences between philosophies presupposing one Logic versus many logics?
logic
metaphysics
philosophy-of-logic
Is the statement "Nothing is absolute" a contradiction?
logic
Predicate logic proofs - how to split a conjunction bound by two quantifiers
logic
proof
Expressing a sentence in predicate logic
logic
How do you translate If Michael is incorrect then the Washington Monument is made of granite in predicate logic?
logic
Example for Toulmin's model advantages
logic
existence
Can anyone assist me with Toulmin's model of argumentation in Philosophy?
logic
argumentation
why isn't humanistic logic taught in schools any more?
logic
What are the philosophical implications of category theory?
logic
history-of-philosophy
philosophy-of-mathematics
Propositional Proofs
logic
In predicate logic, do we necessarily have to restrict the domain of discourse?
logic
philosophy-of-logic
Is it logically correct to say that if A implies B then not A implies not B?
logic
symbolic-logic
What are the important effects of studying logic?
logic
Can something be actually possible yet logically impossible?
logic
ontology
knowledge
truth
Is this a valid argument (using probability and uncertainties)?
logic
probability
deduction
What fallacy dismisses criticism of a bad law with "just don't break it"?
logic
ethics
fallacies
philosophy-of-law
rhetoric
Create a statement in propositional logic. This statment must have 2 attributes. (The attributes are specified in the top header)
logic
propositions
Introduction to science philosophy
logic
philosophy-of-science
philosophy-of-mathematics
Is a statement with an undefined term a statement?
logic
What is the name for the fallacy where the very act of making a statement contradicts its truth?
logic
fallacies
paradox
Only valid syllogisms are syllogisms?
logic
syllogism
Is syllogism an inference rule?
logic
aristotle
syllogism
locke
Prove ( ¬P ∨ Q) ↔ (P → Q)
logic
Quantificational vs Referential vs Predicational descriptions
logic
philosophy-of-language
analytic-philosophy
bertrand-russell
frege
fallacious proof
logic
quantification
Is reduction to the absurdum to be considered a syllogism?
logic
aristotle
syllogism
Prove whether statement is true or false
logic
truth
proof
Proof Universe Came From Nothing?
logic
existence
Is there a logical system that accounts for cause and effect relationship?
logic
propositions
Definition of proposition
logic
propositions
In propositional logic, why can a FALSE antecedent of conditional be simplified to TRUE?
logic
propositions
Can Deduction for a Valid Argument produce the wrong conclusion?
logic