Constructive Complete Distributivity III
Canadian mathematical bulletin, Tome 35 (1992) no. 4, pp. 537-547
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A complete lattice L is constructively completely distributive,(CCD)(L), if the sup map defined on down closed subobjects has a left adjoint. We characterize preservation of this property by left exact functors between toposes using a "logical comparison transformation". The characterization is applied to (direct images of) geometric morphisms to show that local homeomorphisms (in particular, product functors) preserve (CCD) objects, while preserving (CCD) objects implies openness.
Rosebrugh, Robert; Wood, R. J. Constructive Complete Distributivity III. Canadian mathematical bulletin, Tome 35 (1992) no. 4, pp. 537-547. doi: 10.4153/CMB-1992-070-6
@article{10_4153_CMB_1992_070_6,
author = {Rosebrugh, Robert and Wood, R. J.},
title = {Constructive {Complete} {Distributivity} {III}},
journal = {Canadian mathematical bulletin},
pages = {537--547},
year = {1992},
volume = {35},
number = {4},
doi = {10.4153/CMB-1992-070-6},
url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1992-070-6/}
}
TY - JOUR AU - Rosebrugh, Robert AU - Wood, R. J. TI - Constructive Complete Distributivity III JO - Canadian mathematical bulletin PY - 1992 SP - 537 EP - 547 VL - 35 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1992-070-6/ DO - 10.4153/CMB-1992-070-6 ID - 10_4153_CMB_1992_070_6 ER -
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