Although it can have a variety of meanings in philosophy, truth generally refers to conformity with fact or reality.

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Were we born to believe?

This is a controversial question and not one that necessarily implies a Super Natural intervention, but I am curious about your opinion. Many of you I would hope is aware of the fact that living our ...
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The Customer is not Always Right

This issue has always been a philosophic issue to me, sense I have worked at McDonalds for the last six years of my life. On minute one of my first day of training, I was told "the customer is always ...
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Truth is singular. Its “versions” are mistruths. [closed]

In the beginning of the legendary movie called Cloud Atlas... Somni 541 is sitting in a room, and an "Archivist" comes in. The conversation starts... Archivist: On behalf of my Ministry and the ...
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What distinguishes logical necessity, logical consequence, logical truth, and tautology from one another?

The text I'm reading distinguishes logical necessity, logical consequence, logical truth, and tautology from one another; however it doesn't make their distinctions especially perspicuous. As far as ...
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On the Nature of Truth [closed]

I'm fairly new to philosophical readings- that is, I've only parsed through various textbooks of antiquity. My questions, regarding the nature of truth, is as follows: Is contemporary consensus ...
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77 views

Why do we celebrate made up stuff?

Time goes in one direction. It doesn't make sense for one to say "3 years go on this day...". Its not the same day. Change has occurred. We, this world, everything we know is in a different state ...
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Why do we tend towards discretizing things around and within us?

Why do we tend towards discretizing things around and within us? Do our senses (for space and time) fool us into this notion all the way into the need for discretizing abstractions themselves, e.g. An ...
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A non question pertaining to the the law of identity (axiom)

The Law of Identity states "That every thing is the same with itself and different from another." A is A and not ~A. This seems to assume a perspective which facilitates this conclusion (hence an ...
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In what sense are proofs just arguments that convince us, not arguments that establish truth?

In mathematics and logic, it seems that once a proof of some theorem is discovered, then it is taken to be "absolute truth" within the axiomatic system from which it was derived. My question is: are ...
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What is taken as truth in philosophy?

First and foremost I should say that I am not educated in Philosophy; I study Mathematics. Essentially, the job of a mathematician is to prove theorems by logical deduction from axioms, which are ...
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Is there a category for statements that are never true?

I studied logic and found no category for statements that are not impossible but never true (e.g. "The earth is flat.") to differ them from statements that could be true ("I'm wearing blue shoes.") or ...
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Perception and truth

This is an afterthought of a TEDx video I caught this week on moral philosophy and its links with truth: "Perception is truth." Consider the following situations: ...
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37 views

Do we have an understanding of the universe? [closed]

My question is if we as rational creatures have come to terms that the universe is huge, there are planets bigger than earth, and with the advance of string theory, have we as humans finally have a ...
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122 views

what is the practical use of Tarski's Convention T?

In software engineering one often starts with defining principles, standards and guidelines that programmers should stick to and apply in their products. There comes a moment when one has to evaluate ...
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133 views

Fodor, Compositionality and the Liar

In defense of his Language of Thought Hypothesis (SEP article), Jerry Fodor argues that Thought is recursively compositional in just the same way that Language is. When we understand a sentence, we ...
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What is the difference between Fact and Truth?

I'm curious about the difference between Fact and Truth. I was searching on the internet if I could find it. But still I'm confused about the exact meaning. I first read the forum discussion here Fact ...
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173 views

Important differences between Tarski's 1933 and 1956 truth definitions

The paper "The Seven Virtues of Simple Type Theory" mentions that it uses the same trick (due to Tarski) to define the semantics that is also used by first-order logic. I interpreted this a reference ...
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What is the essential something that Heidegger suggests that philosophers can learn from poetry?

In this transcript of a conversation between Simon Critchley & Badiou on Badiou's book Being and Event, Badiou states: And after that, I have also to understand why there is in modern times a ...
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216 views

The difference between soundness and completeness

Is anyone able to articulate the difference between the properties of soundness and completeness insofar as they relate to the validity of the tree test?
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617 views

What makes Humans different from a chemical computer?

Are we all robots? Is our DNA the 0's and 1's of computer code? Are we an advanced computer system, with instead of keyboard and mouse input... input from our senses. Our database being our brain ...
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What are the methods to evaluate a supernatural statement as carefully as possible?

I've found out that it is hard to evaluate the truth of a statement which has following 5 properties: They concern events in the future. They are so supernatural, to the point of being outside of ...
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178 views

A simple paradox of True or False [duplicate]

In a piece of paper, it was written: The statement written in the paper is false. Is that statement actually true or false?
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How do correspondence theories handle statements like these?

I have a number of true statements. Each of these statements is a case where I have difficulty seeing how (assuming physicalism) the statement could correspond to a state of affairs. My question is: ...
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251 views

Was Karl Popper a “dedicated opponent of all forms of scepticism”? If so, why, or how?

While reading the Wikipedia article on Karl Popper, I was surprised to find that one of the article's sources, in its lede paragraph, claims that Karl Popper was a "dedicated opponent of all forms of ...
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Is scientism a self defeating epistemology?

Some who have argued against the validity of scientism have argued that the view that only science can uncover truth is not a scientific discovery but rather a epistemology. Hence it has been claimed ...
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Is Truth the Primary Epistemic Goal?

There is broad agreement that knowledge is more than just true belief. What, though, must be added to true belief to get knowledge? According to traditional epistemology, two more ingredients are ...
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567 views

How does Logic define “true” and “false”?

"Truth", "Falsehood" are pretty axiomatic expressions, but even axioms need to be defined in common language terms. What are the "official" definitions of these in Informal logic, Formal logic, ...
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How do quantifiers work in predicate logic?

Predicate logic is somewhat like propositional logic, except that where propositional logic only works on the level of whole sentences (e.g. A = "Socrates is mortal", B = "All ...
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How can we reason about “if P then Q” or “P only if Q” statements in propositional logic?

When you have a propositional sentence of the form P ⊃ Q  — which we might read as "if P, then Q" — how can you tell when it is true, or false, based on the truth-values of P and ...
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What does “the case” mean?

Reading some philosophy articles, I keep coming across the phrases "it is the case that X" and "it is not the case that Y". I get the impression that this phrase has a somewhat different nuance than ...
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Help me clarify this phenomenon [closed]

It might be something interesting or it might be something really simply. I'm pretty sure others have come across this before and proposed explanations for it. I very much want to look into this ...
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222 views

Are truth-claims inappropriate?

Strictly speaking, is it inappropriate to make a truth-claim? I am seeking an answer from Philosophy (Epistemology), and feel free to use logic I am speaking "theoretically", not "practically" I am ...
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239 views

Why do we naturally regard the unfamiliar as ridiculous?

(Since there is no Psychology.SE, Ph.SE seemed like the best place to ask this question.) I have noticed that when a person is presented with an unfamiliar idea, the default reaction is often to ...
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Can something be actually possible yet logically impossible?

By actual possibility I mean the possibility which is implied by ability or power. By logical possibility I mean whether concepts of reality contradict each other or not. I believe that knowledge ...
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Claims that we know (virtually) nothing - can they be refuted?

Here's an argument that I've heard a number of times from friends and on the Internet: "The ratio of what we know about the universe to what we have yet to discover is so small - it is therefore ...
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Is uttering a true statement and by that making it false considered lying?

Let's say my friend has a fly on her head, but she does not know it. I say to her: "You don't know that you have a fly on your head". Right before I uttered my statement - it was true, but right after ...
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Have there been any attempts to “redo” epistemology without the factivity of knowledge?

Mainstream analytic epistemology seems to take for granted that for S to know p, p must be true. I do not share this intuition. It seems that to be properly internalist about knowledge, one can't ...
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Is the concept of “knowledge” important for philosophy?

I learned the definition of “knowledge” of justified true belief. I wonder whether it is important in any branch of philosophy? If I think about information per se, this boils down to technical ...
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How can we know if God is lying or not? [closed]

Stated more generally: Are there entities whose claims—by the nature of their existence—are outside the scope of rational inquiry? Consider the example of the Abrahamic God, the relevant matter not ...
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Motivations for dialetheism?

At the request of the moderators, I've reformulated this question to change the emphasis of the question to something perhaps a little more broad-ranging: Question. What are the major modern ...
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How to recognize truth when you hear it? [closed]

Amateur here. I always held that the only way to identify truth is by the scientific method. You test it. But, as I sit here smoking my pipe, I think there has got to be some method to deal with ...
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What is the end goal of contemporary philosophy? [closed]

I had a professor who I found quite worthless except his explanation of philosophy as: an attempt to reduce the flux of the world to arrive at unchanging truth The class was centered around ...
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When it is correct to use Tarski's undefinability theorem versus Gödel's incompleteness theorem?

Smullyan (1991, 2001) has argued forcefully that Tarski's undefinability theorem deserves much of the attention garnered by Gödel's incompleteness theorems. That the latter theorems have much to ...
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What are the philosophical implications of Gödel's First Incompleteness Theorem?

Gödel's First Incompleteness Theorem states Any effectively generated theory capable of expressing elementary arithmetic cannot be both consistent and complete. In particular, for any ...