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^. Comp-y, P 3 , P 4 ) = (r y , P 5 , P 6 ) ^ comp t (P 1 , P 2 ) = (r t

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O. Ost, relations = set(

O. and P. Size@-x, P) @ x size$ x (P) $ x size@ y (P) @ y size$ y (P) $ y size@ t (P) @ t size$ t (P) $ t O

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=. Pcsynchronize, PC) compound size@ t ((rst(PC)) + size$ t ((rst(PC)) ; size$ t (rest(PC)) @ t rest

. Autres, = P 1 $ r 2 {before, meet, overlap, start, di, } abs(r i , P 1 , P 2 ) = P 2 $ r 2 {bi, mi, oi, si, during, nish, equal}. comp i (P 1 , P 2 ) = (r i , P 1 , s i z e i (P 2 ) ; size i (P 1 ) @ i P 2 ) $ r 2 {before, meet, overlap, start, di, } ^ r i ( P 1 , size i (P 2 )

P. Composition-de-tableaux-et-de-mdias-la-gure and B. , 2 prrsente une combinaison de tableaux et de mdias Cette prrsentation est composse de deux tableaux qui montrent des images d'activitts de loisir que l'on peut rraliser dans des stations de ski. Ces tableaux sont associis une image de la rrgion oo se trouvent les stations oo ont peut rraliser ces activitts. L'image est associie un texte qui fait ooce de sous-titre. La prrsentation globale est un tableau composs des llments (prrsentations) que nous venons d''nummrer, Nous expliquons dans la suite la construction de cette prrsentation en utilisant OQLiST. Fig. B.2 Stations de ski et activitts