This is prolog written several programs : a procedure is a travel agency relations systems, procedures 2 is a family relationship systems, procedures 3 is a performance management system

exercices
.........\sujet_1
.........\.......\ex1
.........\.......\voyage
.........\sujet_2
.........\.......\ex2
.........\.......\matrimonial
.........\sujet_3
.........\.......\arbre
.........\.......\assertion_arbre
.........\.......\ex3
.........\.......\regle_arbre
.........\.......\regle_arbre_2
.........\sujet_4
.........\.......\assertions_etu
.........\.......\etudiants
.........\.......\ex4
.........\.......\regles_etudiants
.........\.......\regles_etudiants_2

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