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Questions in the neighbourhood of logic

. One is epistemic;  is logic a priori, or rather is it an  empirical discipline?

Another is related to an explanation of the structural similarity between the general features of thought and the general features of reality.

Either the structure of thought explains the structure of reality (a form of idealism), 

or the other way round (a form of realism), or maybe there is a common explanation of why both have the same structure, 
1) theism a belief in God, where your your structure of thought (guarantees a match)
a) I believe there is a God
b) there is a god

Or for let  us say an non-believer, where the the structure of reality, I see a computer screen in front of me, it has properties,  the world for me has a certain basic structure, being constituted by objects (computer) which have properties.

This leads us on to Darwin, so properly represent a world like this, I see a tiger, I run,  the creatures from which we evolved had to develop minds that mirror this structure. Those who developed a different kind of mind died out. Therefore we have a mind whose thoughts have a structure which mirrors the structure of the world.

But is the second option - there is an object in front of me and it has properties
or is it speculative as in a belief in God.

We then move on to TRUTH, and the correspondence theory of truth = for a sentence to be true it has to correspond to the world in a way that mirrors the structure and matches parts of the sentence properly with parts of the world, then the structure of a true sentence would have to be mirrored in the world.

Or, a coherence theory of truth is correct then the truth of a sentence does not require a structural correspondence to the world, but merely a coherence with other sentences. 

For more on truth see (Künne 2003). 

source: http://plato.stanford.edu/entries/logic-ontology/#Bib

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