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Keywords from Image Description:
Enriched mult. math en Maksim page en Coherence law for associativity in enriched categories TeX source documentclass article usepackage xy xyoption all newcommand Hom mathrm Hom begin document thispagestyle empty tiny xymatrix Hom otimesHom otimesHom arr alpha ard circotimes Hom otimes Hom otimesHom arr otimescirc Hom otimesHom