Post : Peirce's 1870 “Logic Of Relatives” • Selection 12
http://inquiryintoinquiry.com/2014/06/09/peirces-1870-logic-of-relatives-%e2%80%a2-selection-12/
Posted : June 9, 2014 at 10:24 am
Author : Jon Awbrey
Inquiry Into Inquiry : Logic of Relatives
☞http://inquiryintoinquiry.com/category/logic/logic-of-relatives/
Peircers,
On to the next part of §3. Application of the Algebraic Signs to Logic.
<quote>
The Sign of Involution
======================
I shall take involution in such a sense that x^y will denote everything which is an x for every
individual of y. Thus l^w will be a lover of every woman. Then (s^l)^w will denote whatever stands
to every woman in the relation of servant of every lover of hers; and s^(lw) will denote whatever
is a servant of everything that is lover of a woman. So that
• (s^l)^w = s^(lw).
</quote>(Peirce, CP 3.77)
Regards,
Jon
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