Quantificational fallacies | Syllogistic fallacies

Existential fallacy

The existential fallacy, or existential instantiation, is a formal fallacy. In the existential fallacy, one presupposes that a class has members when one is not supposed to do so; i.e., when one should not assume existential import. Not to be confused with the 'Affirming the consequent', which states "A causes B; B, therefore A". One example would be: "Every unicorn has a horn on its forehead". It does not imply that there are any unicorns at all in the world, and thus it cannot be assumed that, if the statement were true, somewhere there is a unicorn in the world (with a horn on its forehead). The statement, if assumed true, implies only that if there were any unicorns, each would definitely have a horn on its forehead. (Wikipedia).

Video thumbnail

Simone de Beauvoir on Existentialism & God (1959)

A version of a video from the old channel. This comes from a 1959 interview with Wilfrid Lemoyne from Radio-Canada. The translation is my mine. More Short Clips: https://www.youtube.com/playlist?list=PLhP9EhPApKE8v8UVlc7JuuNHwvhkaOvzc Existentialists take human existence and the human con

From playlist Shorter Clips & Videos - Philosophy Overdose

Video thumbnail

Logical Fallacies

In this video, you’ll learn about kinds of logical fallacies and how to spot them. Visit https://edu.gcfglobal.org/en/problem-solving-and-decision-making/ to learn even more. We hope you enjoy!

From playlist Critical Thinking

Video thumbnail

Existentialism and Dating

At first glance, nothing immediately seems to connect the business of dating with the European philosophical movement of Existentialism. However, on closer inspection, the thoughts of Existential philosophers contain a number of insights that serve to illuminate aspects of the dating world

From playlist RELATIONSHIPS

Video thumbnail

What is an Existential Crisis?

People often speak of going through an ‘existential crisis’; but what do they really mean by the term? And when can it be useful to have it to hand? To undertake the journey of self-exploration the Existentialists thought crucial, take a look at our “Know Yourself” cards: http://bit.ly/29

From playlist SELF

Video thumbnail

Husserl, Heidegger & Existentialism - Hubert Dreyfus & Bryan Magee (1987)

In this program, Hubert Dreyfus and Bryan Magee discuss the thinkers Husserl and Heidegger, as well as the movements of phenomenology and existentialism. Edmund Husserl was a 20th-century German philosopher, best known for founding phenomenology, a philosophical movement and methodology of

From playlist Bryan Magee Interviews - The Great Philosophers (1987)

Video thumbnail

Formal Logic

This video functions as a brief introduction to many different topics in formal logic. Notes on the Images: I looked into the legality of using images for this video a good deal and I've come to the conclusion that there is nothing in this video which could remotely imply these images ar

From playlist Summer of Math Exposition 2 videos

Video thumbnail

What kind of atheist are you? | Clay Routledge

This interview is an episode from The Well, our new publication about ideas that inspire a life well-lived, created with the John Templeton Foundation. Subscribe to The Well on YouTube ► https://bit.ly/thewell-youtube Up Next ► Supernatural thinking: Your brain’s anti-anxiety mode https:/

From playlist Welcome to The Well

Video thumbnail

What Is Narcissism?

Narcissism is the word we routinely use to describe someone self-satisfied and arrogant. But what do we really mean by the word – and are we applying it correctly? If you like our films, take a look at our shop (we ship worldwide): https://goo.gl/YfXSQO Join our mailing list: http://bit.ly

From playlist SELF

Video thumbnail

Logic 2: Karnaugh Map, Fallacies, 7400 Series — Tutorial 2/4

In this four-part series we explore propositional logic, Karnaugh maps, implications and fallacies, predicate logic, existential and universal quantifiers and finally natural deduction. Become a member: https://youtube.com/Bisqwit/join My links: Twitter: https://twitter.com/RealBisqwit L

From playlist Logic Tutorial

Video thumbnail

Teach Astronomy - The Anthropic Principle

http://www.teachastronomy.com/ The anthropic principle is an extraordinary idea that is somewhat controversial even amongst scientists. It's possible that the existence of life in the universe is not an accident, that the role of life in the universe is more central than we might imagine.

From playlist 29. Prospects of Nonhuman Intelligences

Video thumbnail

Lakatos on Science & Pseudoscience (1973)

Imre Lakatos's most succinct public summary of his philosophy of science. In this talk, he outlines his distinctive view of the importance of 'the demarcation problem' in the philosophy and history of science, namely the normative methodological problem of distinguishing between science an

From playlist Shorter Clips & Videos - Philosophy Overdose

Video thumbnail

Logic 3: Quantifiers (univ. & exist.), Proofs part 1 — Tutorial 3/4

In this four-part series we explore propositional logic, Karnaugh maps, implications and fallacies, predicate logic, existential and universal quantifiers and finally natural deduction. Become a member: https://youtube.com/Bisqwit/join My links: Twitter: https://twitter.com/RealBisqwit L

From playlist Logic Tutorial

Video thumbnail

Logic 4: Natural Deduction with Logical Axioms — Tutorial 4/4

In this four-part series we explore propositional logic, Karnaugh maps, implications and fallacies, predicate logic, existential and universal quantifiers and finally natural deduction. Become a member: https://youtube.com/Bisqwit/join My links: Twitter: https://twitter.com/RealBisqwit L

From playlist Logic Tutorial

Video thumbnail

Robert Crease - Flood Control: The Pandemic and Science Denial - CoM Oct 2020

Martin Gardner was one of the leading practitioners of something that we need more than ever: skepticism. What would Martin have said about responses to the current pandemic in the US? How would he have understood and discussed the reactions to it of US politicians, scientific institutions

From playlist Celebration of Mind

Video thumbnail

Netflix's Social Dilemma Is a Lie

The Social Dilemma is a highly appraised Netflix documentary with deep flaws that needs addressing. Join my channel and become a member to enjoy perks https://www.youtube.com/channel/UCjr2bPAyPV7t35MvcgT3W8Q/join Support me through Patreon: https://www.patreon.com/thehatedone - or donat

From playlist Decrypted Lies

Video thumbnail

Maths for Programmers Tutorial - Full Course on Sets and Logic

Learn the maths and logic concepts that are important for programmers to understand. Shawn Grooms explains the following concepts: ⌨️ (00:00) Tips For Learning ⌨️ (01:32) What Is Discrete Mathematics? ⌨️ (03:45) Sets - What Is A Set? ⌨️ (06:22) Sets - Interval Notation & Common Sets ⌨️ (

From playlist Full Courses in One Video

Video thumbnail

Logic 1: Binary Propositions, De Morgan’s Law, What is an Implication — Tutorial 1/4

In this four-part series we explore propositional logic, Karnaugh maps, implications and fallacies, predicate logic, existential and universal quantifiers and finally natural deduction. Become a member: https://youtube.com/Bisqwit/join My links: Twitter: https://twitter.com/RealBisqwit L

From playlist Logic Tutorial

Video thumbnail

Arguing God from Being | Episode 807 | Closer To Truth

I'm obsessed by raw existence, which science can never explain. Does this mean that there is a God? I wish it were that simple. Yet some claim that a 'Most Perfect Being' must exist. Featuring interviews with Peter van Inwagen, Alister McGrath, Seyyed Nasr, Michael Tooley, and Alvin Plant

From playlist Big Questions About God - Closer To Truth - Core Topic

Video thumbnail

The Problem With Perfectionism

We aim for perfection without a correct idea of what perfection might demand from us. To strengthen our resolve, we need to improve our picture of what sacrifices any achievement will demand. If you like our films, take a look at our shop (we ship worldwide): https://goo.gl/p8kdj3 Join ou

From playlist SELF

Video thumbnail

The Best Science-Based Lower Body Workout for Growth (Quads/Hams/Glutes)

When it comes to designing your lower body workout, or “legs workout”, in your upper/lower split, you need to focus on adequately training all of the leg muscles. This includes the quadriceps, hamstrings, glutes, and calves. The best legs workout for mass is one that targets all of these m

From playlist BEST SCIENCE-BASED WORKOUT ROUTINES

Related pages

Existential instantiation | Formal fallacy | Quantifier (logic) | Giuseppe Peano | Vacuous truth | Bertrand Russell | Affirming the consequent