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Ideas of Arnauld / Nicole, by Text

[French, fl. 1662, Theologians at Port-Royal Abbey, near Paris.]

1662 Logic (Port-Royal Art of Thinking)
I.5 p.37 We know by abstraction because we only understand composite things a part at a time
I.5 p.38 A triangle diagram is about all triangles, if some features are ignored
I.5 p.38 No one denies that a line has width, but we can just attend to its length
I.5 p.38 We can rise by degrees through abstraction, with higher levels representing more things
III.18 p240 p.652 Forms make things distinct and explain the properties, by pure form, or arrangement of parts
p.63 p.9 We can only know the exterior world via our ideas