Notes
- Geach , Peter . 1964 . Mental Acts , 117 London : Routledge & Kegan Paul .
- Haldane , E. S. and Ross , G. R. T. , eds. 1955 . The Philosophical Works of Descartes , Vol. I , 145 London : Dover Books .
- Doney , Willis , ed. 1967 . “ ‘The Certainty of the Cogito’ ” . In Descartes: A Collection of Critical Essays , 88 – 107 . Doubleday (Anchor Books) . reprinted
- Doney , ed. “ ’Cogito Ergo Sum: Inference or Performance?’ ” . 108 – 39 . reprinted op. cit.
- 1978 . Descartes: The Project of Pure Enquiry , Harmondsworth : Penguin Books .
- Haldane , Prop. X. and Ross , eds. The Principles of Philosophy, Pt. I Vol. I , 223 op. cit.