#
Categories of spaces may not be generalized spaces

as exemplified by directed graphs

##
F. William Lawvere

Originally published as:

Revista Colombiana de Matematicas, XX (1986) 179-186.

Keywords:
topos of spaces, directed graphs, sheaves, idempotents, Mengen.

2000 MSC:
00A30, 14F20, 18B25, 18B30, 18B40, 55U40, 81P05

Republished in:

*Reprints in Theory and Applications of Categories*,
No. 9 (2005) pp. 1-7

http://www.tac.mta.ca/tac/reprints/articles/9/tr9.dvi

http://www.tac.mta.ca/tac/reprints/articles/9/tr9.ps

http://www.tac.mta.ca/tac/reprints/articles/9/tr9.pdf

TAC Reprints Home