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Les transparents du cours - PPS

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Quantification universelle (à la Système F)<br />

τ ::= Type<br />

| int Entiers<br />

| α Variable de types<br />

| ∀α.τ Type polymorphe<br />

| ε (τ) Type construit<br />

ε ∈ { . →, blocki}<br />

e ::= Expression<br />

| . . .<br />

| Λα.e Abstraction de type<br />

| e[τ] Application de type<br />

| . . .<br />

◮ <strong>Les</strong> environnements de typage contiennent des variables de type α.

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