%0 Journal Article %A Higgs, Denis %T Injectivity in the Topos of Complete Heyting Algebra Valued Sets %J Canadian journal of mathematics %D 1984 %P 550-568 %V 36 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1984-034-4/ %R 10.4153/CJM-1984-034-4 %F 10_4153_CJM_1984_034_4