Single Idea 2602

[catalogued under 12. Knowledge Sources / A. A Priori Knowledge / 4. A Priori as Necessities]

Full Idea

Please tell me what the corporeal motion is that is capable of forming some common notion to the effect that 'things which are equal to a third thing are equal to each other'.

Gist of Idea

What experience could prove 'If a=c and b=c then a=b'?

Source

René Descartes (Comments on a Certain Broadsheet [1644], p.366)

Book Reference

'The Philosophy of Mind', ed/tr. Beakley,B /Ludlow P [MIT 1992], p.366

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