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Questions tagged [intuition]

43 questions
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How come intuitive thinking is related to constructing a proof?

I am researching Constructivism and Intuitionism. I can't understand why Intuitionism and Intuitionistic Logic are named as they are. Intuitionistic logic requires constructing a proof of every statement that is used. Therefore, for me, it feels…
NotSure
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What is "intuition" for Kant?

Intuition appears to be a relatively abstract concept, an incomplete cognition, and thus not directly experienceable. Kant says that all knowledge is constituted of two parts: reception of objects external to us through the senses (sensual…
Ootagu
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What is the role of the a priori nature of time in intuitionism?

According to Brouwer, intuitionists abandoned Kant's apriority of space but adhered to the idea that time was a priori. This Intuitionism considers the "falling apart of moments of life into two qualitatively different parts, to be united only while…
user26166
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Are analogies between ethics and mathematics philosophically coherent?

Analogies between ethics and mathematics are pretty common – probably because of their shared a priori nature. Philosophical laymen use them, like “Scott Alexander” (no, you don't need to know him), who argues in the context of the fat man problem…
viuser
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For Kant, why does temporal synthesis need to happen?

Taking our experience of time... this is how I understand what Kant is saying. There's this non-temporal manifold of sensation. I am picturing it like the pages of a flipbook. Images in succession which have yet to be tied together or animated. The…
Ameet Sharma
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Intuitively, why are Universal Statements true in the Empty Universe?

Source: p 165. Sweet Reason: A Field Guide to Modern Logic (2010 2 ed) by Henle, Garfield, Tymoczko. I read this on Math SE; please advise if it pertains to my simpler question.   One property of the empty universe [hereafter EU] is that every…
user8572
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What properties does "intuition" need in order to be counted as philosophical evidence?

Timothy Williamson (2008) has argued that we should not construe philosophical evidence as consisting of intuitions. Do intuitions generate philosophical evidence? And, if so, what sort of evidence do they generate? Is that some kind of…
user38026
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What makes the material conditional material?

What makes the material conditional material (also called the material implication)? What does this logical connective have to do with matter? Googling doesn't seem to help.
Michael Smith
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Do biological studies on intuition reject the idea of "intellectual intuition"?

Philosophers throughout the history (most known to me are from the German Idealism school) have used the idea of an "intellectual intuition" - often (in German Idealism) the way that a certain "genius" is able to "connect" to the…
Yechiam Weiss
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How can one intuit that P → Q ≡ ¬P ∨ (P ∧ Q)?

I have not succeeded in intuiting P → Q ≡ ¬P ∨ Q in the sense of imagining how one would conjecture or divine the equivalence without any "foreknowledge" of ¬P ∨ Q to invoke formal proofs or truth tables. Maybe the following (that I emended to…
user8572
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What do dual-intuitionistic and minimal logic model?

As someone interested in theoretical computer science, I'm fairly comfortable with what intuitionistic logic represents. An intuitionistic proof is a proof we can act upon algorithmically. The law of the excluded middle is rejected because we don't…
mudri
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Intuitively, why does (B → S) ≡ (¬B ∨ S)?

I pursue only intuition; please do not answer with formal proofs or Truth Tables. I comprehend the following explanation, but it still does not supply the intuition and I sense a deeper, directer, more intuitive explanation. So how else can I intuit…
user8572
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Why should reason be used some times but not others?

People would find normal to plainly use reason in a lot of situations such as at work, designing a marketing project, writing a scientific article, drafting an architectural plan for a house, or in private, such as preparing a shopping list,…
Starckman
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Contemporary philosophers on intellectual intuition?

The 18th-19th century German philosophers (the so-called "German Idealists"), and other Post-kantian philosophers have used the term "intellectual intuition" in slightly different ways, but generally as a sort of perception, a sixth sense of sort,…
Yechiam Weiss
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At base, do all disagreements in philosophy come down to differences in intuition?

I am coming at this from outside philosophy, though I have had a lifelong amateur interest. It seems to me that rigorous philosophical writing sets out clear axioms before using propositional logic to deduce statements about the condition of the…
Sputnik
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