Author: Borceux, Francis

Borceux, Francis; Bourn, Dominique; Johnstone, Peter: Initial normal covers in bi-Heyting toposes. (English). Archivum Mathematicum, vol. 42 (2006), issue 4, pp. 335-356
Borceux, Francis; Pedicchio, M. Cristina: De Morgan's and strong De Morgan's laws in a topos of shaves. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 28 (1987), issue 2, pp. 9-12

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