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Principia mathematica, vol. 1 (of 3)

SECTION B. THEORY OF APPARENT VARIABLES.

Project Gutenberg EPUB3 edition Whitehead, Alfred North and Russell, Bertrand

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Principia mathematica, vol. 1 (of 3), Project Gutenberg eBook #78050

FOOTNOTES: *9. EXTENSION OF THE THEORY OF DEDUCTION FROM LOWER TO HIGHER TYPES OF PROPOSITIONS.