/lit/ - Literature

>Re-knee Gwee-nun

>>14945292
>>14945359
(Opening note:
Categorical propositions:
All S are P. (A form)
No S are P. (E form)
Some S are P. (I form)
Some S are not P. (O form)
List of Unconditionally Valid Syllogistic Forms
AAA EAE IAI AEE
EAE AEE AII IAI
AII EIO OAO EIO
EIO AOO EIO)

>The Syllogistic Arguments:
>1. AEE
>A All physical things are particulars
>E No universals are particulars
>E No universals are physical things

>2. Conversion of Conclusion: No physical things are universals

>3. EIO
>E No physical things are universals
>I Some concepts are universals
>O Some concepts are not physical things

>4. OAO
>O Some concepts are not physical things
>A All concepts are in the mind
>O Some (things) “in the mind” are not physical things

>5. Translated Conclusion: Some things in the mind are not physical

>6. OAO
>O Some things in the mind are not physical things
>A All things in the mind are part of the mind
>O Some part of the mind is not physical

>7. Translated Conclusion (Obversion): Some part of the mind is immaterial (where immaterial means the negation of what is material/physical)

>8. Materialism/Physicalism Thesis: E No part of the mind is immaterial

>9. Modern Square of Opposition: the contradiction of E (No S are P) propositions is an I proposition (Some S are P)

>10. Therefore, the I proposition (Some part of the mind is immaterial) refutes materialism/physicalism by way of counter-example.
>Q.E.D.