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Groundbreaking

UUU
Posts: 176
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8/13/2016 5:44:36 PM
Posted: 3 months ago
Do you think every logic needs to be based on another one? If so, don't you think there must be a base, a ground on which logic is constructed?
DanneJeRusse
Posts: 12,560
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8/13/2016 5:48:46 PM
Posted: 3 months ago
At 8/13/2016 5:44:36 PM, UUU wrote:
Do you think every logic needs to be based on another one? If so, don't you think there must be a base, a ground on which logic is constructed?

How about reality?
Marrying a 6 year old and waiting until she reaches puberty and maturity before having consensual sex is better than walking up to
a stranger in a bar and proceeding to have relations with no valid proof of the intent of the person. Muhammad wins. ~ Fatihah
If they don't want to be killed then they have to subdue to the Islamic laws. - Uncung
Without God, you are lower than sh!t. ~ SpiritandTruth
UUU
Posts: 176
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8/13/2016 5:55:21 PM
Posted: 3 months ago
If you are interested to have a conversation with me, you must post your opinion on other two of my threads, namely -
Disprove this statement http://www.debate.org...
and Magic http://www.debate.org...
DanneJeRusse
Posts: 12,560
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8/13/2016 5:56:22 PM
Posted: 3 months ago
At 8/13/2016 5:55:21 PM, UUU wrote:
If you are interested to have a conversation with me, you must post your opinion on other two of my threads, namely -
Disprove this statement http://www.debate.org...
and Magic http://www.debate.org...

Then, this thread is irrelevant?
Marrying a 6 year old and waiting until she reaches puberty and maturity before having consensual sex is better than walking up to
a stranger in a bar and proceeding to have relations with no valid proof of the intent of the person. Muhammad wins. ~ Fatihah
If they don't want to be killed then they have to subdue to the Islamic laws. - Uncung
Without God, you are lower than sh!t. ~ SpiritandTruth
RuvDraba
Posts: 6,033
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8/13/2016 6:14:21 PM
Posted: 3 months ago
At 8/13/2016 5:44:36 PM, UUU wrote:
Do you think every logic needs to be based on another one? If so, don't you think there must be a base, a ground on which logic is constructed?

UUU, formal logic is the discipline in which I worked as a research scientist. In my research, I worked with dozens, perhaps scores of logics. None were fundamental, and there weren't even properties of logic that I could consider fundamental, except the properties we normally associate with linguistics.

After some years of reflection, I now view logic as I view math: as a linguistic construction, rather than an order of the universe. To conflate it with an order to the universe produces a similar issue to your other question about randomness and predictability, on which I have commented here: [http://www.debate.org...]

So if you want an underlying structure to human-created logics, I'd suggest it's the structure of human-created languages. I'm happy to explain what I mean by that, show why I think it so, and then explain what I think logic is and is not good for in our understanding of the world.

However, my short answer is: no, I don't think there's a single fundamental or foundational logic upon which all ideas of truth and reason are built. But that doesn't mean I think reason is arbitrary.