Laws of Form - Revision history

Abel Maciel at 18:00, 21 October 2016

2016-10-21T18:00:42Z

Abel Maciel at 17:36, 21 October 2016

2016-10-21T17:36:55Z

Abel Maciel at 17:29, 21 October 2016

2016-10-21T17:29:04Z

Abel Maciel at 22:29, 2 September 2016

2016-09-02T22:29:15Z

Abel Maciel: Created page with "Category:Theory Category:Mathematics Category:Philosophy Laws of Form (hereinafter LoF) is a book by G. Spencer-Brown, published in 1969, that straddles the b..."

2016-09-02T22:26:27Z

Created page with "Category:Theory Category:Mathematics Category:Philosophy Laws of Form (hereinafter LoF) is a book by G. Spencer-Brown, published in 1969, that straddles the b..."

New page

[[Category:Theory]]
[[Category:Mathematics]]
[[Category:Philosophy]]

Laws of Form (hereinafter [[LoF]]) is a book by G. Spencer-Brown, published in 1969, that straddles the boundary between mathematics and philosophy. LoF describes three distinct logical systems:
*The primary arithmetic (described in Chapter 4 of LoF), whose models include Boolean arithmetic;
*The primary algebra (Chapter 6 of LoF), whose models include the two-element Boolean algebra (hereinafter abbreviated 2), Boolean logic, and the classical propositional calculus;

Equations of the second degree (Chapter 11), whose interpretations include finite automata and Alonzo Church's Restricted Recursive Arithmetic (RRA).

Boundary algebra is Dr Philip Meguire's (2011) term for the union of the primary algebra (hereinafter abbreviated [[pa]]) and the primary arithmetic. "Laws of Form" sometimes loosely refers to the pa as well as to LoF.

@@ Line 5: / Line 5: @@
 [[Category:Algebra]]
 [[Category:Logic]]
 Laws of Form (hereinafter [[LoF]]) is a book by G. Spencer-Brown, published in 1969, that straddles the boundary between mathematics and philosophy. LoF describes three distinct logical systems:

@@ Line 1: / Line 1: @@
-[[Category:Book]]
+[[Category:Books]]
 [[Category:Theory]]
 [[Category:Mathematics]]

← Older revision		Revision as of 17:29, 21 October 2016
Line 1:		Line 1:
		+	[[Category:Book]]
	[[Category:Theory]]		[[Category:Theory]]
	[[Category:Mathematics]]		[[Category:Mathematics]]

@@ Line 2: / Line 2: @@
 [[Category:Mathematics]]
 [[Category:Philosophy]]
 Laws of Form (hereinafter [[LoF]]) is a book by G. Spencer-Brown, published in 1969, that straddles the boundary between mathematics and philosophy. LoF describes three distinct logical systems:
@@ Line 10: / Line 12: @@
 Boundary algebra is Dr Philip Meguire's (2011) term for the union of the primary algebra (hereinafter abbreviated [[pa]]) and the primary arithmetic. "Laws of Form" sometimes loosely refers to the pa as well as to LoF.