Whence comes logic

Discussion in 'General Philosophy' started by Speakpigeon, Dec 13, 2018.

  1. river

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    Brain but more importantly intelligence in and of itself , in the Universe

    the logic of intelligence existing in the first place
     
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  3. Write4U Valued Senior Member

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    I understand that to be a function of reason.
    I understand that to be a function of logic.
     
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  5. Write4U Valued Senior Member

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    I would rephrase that to read ; the logic of emergent intelligence.
     
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  7. river

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    river said: ↑


    yes
     
  8. Write4U Valued Senior Member

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    I agree. Order is Logic. Understanding Logic is Reasoning.
    I agree.
    Note; computers are not reasonable, only logical. They do not produce reasonable results, they produce logical results.
     
  9. river

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    disagree

    logic does not bring in knowledge

    without knowledge there is nothing to be logical about
     
  10. DaveC426913 Valued Senior Member

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    Rene Descartes would disagree with you.

    "Cogit ergo sum" (I think therefore I am) arose from his decision to cast out absolutely everything he thinks he knows - all knowledge - and arrive at his existence from nothing more than the realization that:

    whatever unknowable thing it is that is asking the question - that thing exists, and it is me.

    That is logic in absence of knowledge.
     
  11. river

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    still based on knowledge , the thing that exists , is knowledge of which he does not know of
     
  12. DaveC426913 Valued Senior Member

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    How exactly?
     
  13. river

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    not how Dave , but why .
     
  14. DaveC426913 Valued Senior Member

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    No. How.

    How is Descartes logical deduction dependent on knowledge of the world around him?
     
  15. Write4U Valued Senior Member

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    Are you suggesting universal physical properties are or have knowledge, or that the study of universal physical properties leads to knowledge.
    Let me refresh your knowledge (memory) of the definition of knowledge;
     
  16. river

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    awareness of the world around him
     
  17. DaveC426913 Valued Senior Member

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    The whole point of his logic is that it is entirely independent of the world around him. Be came to it by recognizing that all knowledge is inherently untrustworthy - and rejecting it.

    He could be deaf and blind and have zero input of the world - having only his own thoughts, and his logic still holds.
     
  18. river

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    He is wrong .

    Is ALL knowledge untrustworthy ?
     
  19. DaveC426913 Valued Senior Member

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    Well that's why you are one of the most famous and enduring philosophers in modern history, and he is just a guy on a forum.

    Wait, that's not it.


    In principle, yes. Witness the Brain in a Vat.
     
  20. river

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    yet it is true that Brain has to exist in order for the concept of the vat to be derived , to be thought of
     
  21. DaveC426913 Valued Senior Member

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    Not true. The mind must exist, but it need not be a brain.
     
  22. Jeeves Valued Senior Member

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    Like, somebody else's knowledge? How'd he get ahold of that?
    Or knowledge that was just lying around behind his eyelids -- actually, that's probably accurate in Descarte's musings, since he claims to have discovered God inside his own empty head. I suspect he fudged those results for publication. But he used logic to understand that he needed to do so.
    All knowledge is provisional. We act on what we think we know at any given time, but we also keep doubting, adding, subtracting, modifying, re-evaluating and sometimes discarding knowledge. You said earlier: "knowledge changes" and that's true. Logic doesn't change: as long as it's functioning, knowledge is enlarged, improved and made each day a little more nearly trustworthy.
    I thought we all sprayed on this mulberry bush two pages ago. Without intelligence, there is no knowledge.
    Nothing "brings in" knowledge: knowledge is produced in the brain, from incoming data by the processes of recognition, assessment, comparison, organization and memory. Logic may or may not be applied to any particular incoming datum - if it is not, that information may become an opinion without being knowledge. MAGA!
     
    Last edited: Dec 21, 2018
  23. river

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    without knowledge , things that are the basis of knowledge , there is no intelligence .

    the basis of knowledge is things that exist , energy and matter , then comes the ability for life , intelligence to exist

    knowledge always has existed , it is when our intelligence is to the point of this understanding this
     
    Last edited: Dec 21, 2018

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