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

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The difference between `≡` and `⇔`: two different notions of equivalence of statements?

Consider the following truth table for the "equivalence" statement P | Q || P⇔Q T | T || T T | F || F F | T || F F | F || T which we define to be true when both the truth values of P and Q are the ...
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What is the relationship between meaning and truth? [on hold]

For all I can see, a sentence (or a string of symbols, etc) can only have a truth value if it is meaningful. What does this entail vis-à-vis the relationship between meaning and truth? Are a ...
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47 views

What is self-recurring definition of correctness?(as described below)

I have a question of something I would define as a self-recurring(self-made keyword) definition. Keep in mind that we use the outcome to set the definition (edit if you have a better description- I ...
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Absolute Truth - Is there existence?

I restate the question in a simpler and more specific way; is there a proof or has a philosopher proved, that things can be absolute and observed by each in the same way? Are there like conserved ...
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100 views

Can you tell me, PLAINLY, what is the difference between truth and fact? [duplicate]

So...I've been looking for this answer and have answered for myself very simply...I just want to see if others can give a better answer...but I cannot give you my answer because that would be ...
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63 views

Can correspondence and coherence views of truth be compatible?

If in the course of interacting with an external world, a person is creating a set of coherent knowledge about this world, then there should be a mapping between their beliefs and the external facts. ...
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6answers
113 views

Finding a clear difference between truth and fact

I have been starting back in school after a long hiatus. In one of my classes, a discussion of Truth began. The problem I have had is that no one seems to have a solid definition between the two. ...
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Is everything just an opinion?

I read some people don't believe in truth but do believe there is always a chance that x. I have a question about such thought. I recently heard an anecdote that says nobody can ever prove I ate ...
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140 views

Is it possible to prove the invalidity of logic without using logic?

Is it possible to validly invalidate logic without using logic? Mere assertion gives rise to the question, "How do you know?". At that point, you end up having to use logic to justify the thesis ...
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1answer
76 views

Do questions about the ultimate truth make sense? Are we capable of understanding the system in which we live? (Looking for directions/references)

I am recently reading a lot about topics like free will or consciousness. It seems that many philosophers are trying to argue about these concepts in an ultimate and final way, that means they are ...
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1answer
51 views

Fundamental Truths in Philosophy [duplicate]

Many years ago I took a philosophy class that covered Descartes. The teacher logically explained to us the "I think Therefore I am" over the course of a week. He also said that it was one of the ...
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16 views

What does *remediable* mean to philosophers? (Example and context provided)

In his essay, Knowledge of Logic, Paul Boghossian writes Finally, on the inferential path, there is the question whether it is irremediably true that rule‐circular arguments provide no ...
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71 views

Truth and actuality

J. Krishnamurti and Prof. David Bohm discuss the topic of truth and actuality (reality). They touch on reality however in my opinion and understanding don't clarify or define truth. For example, ...
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68 views

Truth Tables and Venn Diagrams: Prove Contingent statement are consistent

I am trying to prove how consistent statements can be contigent. The problem i am having how to use a truth table to prove this.
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1answer
66 views

Do malformed propositions have True/False values?

Many people are familiar with the malformed questions that, no matter which way they are answered, reflect poorly on the person to whom they were asked. For example: Have you stopped beating your ...
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2answers
44 views

Is truth inherent in honesty? [closed]

Is truth inherent in honesty? In other words, may we establish a correlation, an isomorphism if you will, a functor, perhaps a forgetful one? Between truth and honesty? Pardon me, this question is ...
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3answers
192 views

If all the premises of an argument are true, is the argument logically valid?

Where an argument is said to be logically valid "if and only if it is not possible for the premises to e true and the conclusion false". I know that the argument is indeed logically valid if all the ...
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4answers
141 views

An Argument for the Unity of Truth?

I was thinking about truth, and came up with an outline for an argument that there is only one truth. However, this is just an outline and it is flawed, so I'm hoping you can help me critique and fix ...
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1answer
44 views

What's the difference between true statements and real information? [closed]

In Sweden we have legislation about "Osant intygande" - "Untrue verification" e.g. false and fabricated Ph D diploma or similar "Oriktig uppgift" - "Not a real piece of information" e.g. ...
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104 views

On the foundations of physics

Scientific theories in physics have to be validated by experiments. But experiments are to be interpreted in the context of scientific theories. Isn'it like a snake biting its own tail? For example, ...
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45 views

Truth in Aquinas metaphysics

From what I'm reading, Aquinas distinguished truth in two senses: Ontological truth: It's the adaptation(adequation ?) of the 'created being' to God's understanding, whereby it fulfils that for ...
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2answers
87 views

English Sentence to Logical Proposition Doubt

I am a newbie to Stack-Exchange and if there is any problem in my question -- I apologize beforehand . I was working my way through some Propositional Logic Questions in Discrete Maths by Rosen , ...
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1answer
53 views

Double arrow elimination

I know that P <=> Q becomes (p => q) ^ (q => p)using double arrow elimination but how about the following ? ~(P <=> Q) becoming ~(p => q) ^ ~(q => p) ? Also (~P <=> Q) ...
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287 views

Did Friedrich Nietzsche believe in “the truth”?

It is well known that Friedrich Nietzsche was very condemnatory of the objective truth, however, while analyzing his words, it is difficult to ascertain whether or not he believes in the truth at all. ...
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54 views

What if the tallest height is considered the most beautiful? [closed]

What if some people defined the tallest height is considered the most beautiful? Some philosopher claimed that the most beautiful human doesn't exist. Can there be any "most beautiful" human?
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3answers
260 views

How to prove the axiom is wrong?

The father of math (Euclid) wrote a book named Elements. The book is full of axioms and here are some of them I am interested in: Things equal to the same thing are also equal to one another. ...
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137 views

How did Aristotle or St. Thomas resolve the liar's paradox?

How did Aristotle or St. Thomas Aquinas (such as in one of his commentaries on Aristotle) resolve the liar's paradox?
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183 views

When is an opinion wrong and why exactly? [closed]

People say that it's not an opinion when it's verifiable, or backed with up conclusive facts. "Conclusive facts" are subjective though, and vary from testing. An example would be an argument over the ...
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219 views

How can anyone justify conspiracy theories / scietific skepticism

The number of conspiracy like theories is exponential. http://en.wikipedia.org/wiki/List_of_conspiracy_theories Here are the most famous. How many of these have achieved any tangible success ...
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57 views

Question regarding ethics of the human to the dog relationship

I'm in the process of treating an elderly diabetic dog(diabetes in dogs is manifested very closely to the one in humans) and constantly hitting the wall of ethics(in my view) regarding human-dog ...
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372 views

Roko's Basilisk as Descartes' evil genius?

I'll try to pose a shortened version of Roko's Basilisk below and then ask about how it relates to Descartes' evil genius: The idea is that down the line may it be decades or centuries from ...
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43 views

What are the implications of spreading stories that are fake solely because they support a opinion?

I see quite often on many social mediums, the radio, news, as well as advertisements everywhere statements that are untrue or are misleading that support certain opinions. I think it is completely ...
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1answer
119 views

Supervaluationism and Theories of Truth

How does the supervaluationalist defend his/her theory of truth since the correspondence theory of truth seems to presuppose bivalence? It would seem then that the only truth is Super-Truth. And, the ...
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1answer
336 views

Why is Tarski's semantic theory of truth formally correct and materially adequate?

In "The Semantic Conception of Truth and the Foundations of Semantics" (1944) Alfred Tarski asserts that a satisfactory definition of truth must be both formally correct and materially adequate. A ...
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271 views

Is there such a thing as a 'necessary truth'?

Wikipedia (note the redirect) defines 'necessary truth' as statements which "could not be untrue", and I assume that this is how the term is usually used. A search through the SEP shows that while ...
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241 views

Are mathematical statements necessary truths?

I apologize if a similar question has been asked here, but I haven't found it. Are mathematical statements necessary truths? By 'mathematical statements', I mean both mathematical axioms as well as ...
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1answer
127 views

The Truth-Falsehood Dichotomy and Logic

Some philosophers argue against truth bivalency, and say that not every statement must be true or false, but some statements can be untrue without being false, or truth-ambiguous, or both true and ...
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143 views

Could a scientific unification theory and scientific method itself be misleading?

I aspire to one day be a scientist (specifically an astrophysicist) and I have been reading up on many novels (like those of Asimov) which look into the development of humanity. I know that our ...
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358 views

Tarski's truth definition

I am a Math student currently taking my Master's Degree, and last semester I took a course on Mathematical Logic (an introductory one). One of the subjects we covered there was (of course!) Tarski's ...
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209 views

Why do many people derive comfort from the belief in an objective reality?

Many people derive comfort from the idea that there is an objective reality, and that there are objective truths, independent of our own individual subjective perceptions. Why should this be so? Why ...
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1answer
116 views

Were we born to believe? [closed]

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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121 views

The Customer is not Always Right [closed]

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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1answer
1k views

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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1answer
321 views

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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101 views

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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4answers
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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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121 views

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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154 views

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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873 views

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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173 views

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 ...