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Lax monoidal funct assoc. Coherence law for associativity of lax monoidal functors en Smimram en TeX source documentclass article usepackage xy xyoption all newcommand mathcal newcommand mathcal begin document thispagestyle empty xymatrix FAbullet FB bullet FCard phi bullet arr alphaD FAbullet FBbullet FC ard bulletphi Aotimes