categories: Intervals as a Model of Real Type

["regivan" <regivan@dimap.ufrn.br>]

	What are the desired properties for a model of real type?

		1) It must be a field or work like it, etc.

	I intend to endow intervals with a weak notion of equivalence,
what make it works like a field, what will enable us to use intervals an
representations of real numbers. What are the desired properties that the
resulting structure must satisfy. Some bibliography is welcome.


							My Best Regards
								Regivan
------------------------
Prof. Dr. Regivan H. N. Santiago
Programa de Mestrado em Sistemas e Computação.
Departamento de Informática e Matemática Aplicada - DIMAp
Universidade Federal do Rio Grande do Norte - UFRN
e-mail: regivan@dimap.ufrn.br