playBunny: In the English vernacular, everyday usage, "a piece" (to return to the original example) is ambiguous: it could mean "one and only one," or it could mean "at least one." In logic, the usage is not ambiguous--"a piece" would refer to the existential quantifier, which is to say, it would mean "at least one piece," always and forever, Amen.
(Cacher) Si vous voulez en savoir plus à propos de certains jeux, vous pouvez consulter la section Liens et voir si vous trouvez quelques liens interressants. (pauloaguia) (Montrer toutes les astuces)