Laws of form
George Spencer-Brown
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:
"Boundary algebra" is Meguire's (2011)[1] term for the union of the primary algebra and the primary arithmetic. Laws of Form sometimes loosely refers to the "primary algebra" as well as to LoF.
- 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 Meguire's (2011)[1] term for the union of the primary algebra and the primary arithmetic. Laws of Form sometimes loosely refers to the "primary algebra" as well as to LoF.
Kategorien:
Jahr:
1972
Auflage:
1
Verlag:
Julian Press
Sprache:
english
Seiten:
169
ISBN 10:
0517527766
ISBN 13:
9780517527764
Datei:
DJVU, 1.80 MB
IPFS:
,
english, 1972
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