equal
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inserted
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879 uniformly, similar to a type-theoretic framework. |
879 uniformly, similar to a type-theoretic framework. |
880 |
880 |
881 The @{text "TYPE"} constructor is the canonical representative of |
881 The @{text "TYPE"} constructor is the canonical representative of |
882 the unspecified type @{text "\<alpha> itself"}; it essentially injects the |
882 the unspecified type @{text "\<alpha> itself"}; it essentially injects the |
883 language of types into that of terms. There is specific notation |
883 language of types into that of terms. There is specific notation |
884 @{text "TYPE(\<tau>)"} for @{text "TYPE\<^bsub>\<tau> |
884 @{text "TYPE(\<tau>)"} for @{text "TYPE\<^bsub>\<tau> itself\<^esub>"}. |
885 itself\<^esub>"}. |
|
886 Although being devoid of any particular meaning, the term @{text |
885 Although being devoid of any particular meaning, the term @{text |
887 "TYPE(\<tau>)"} accounts for the type @{text "\<tau>"} within the term |
886 "TYPE(\<tau>)"} accounts for the type @{text "\<tau>"} within the term |
888 language. In particular, @{text "TYPE(\<alpha>)"} may be used as formal |
887 language. In particular, @{text "TYPE(\<alpha>)"} may be used as formal |
889 argument in primitive definitions, in order to circumvent hidden |
888 argument in primitive definitions, in order to circumvent hidden |
890 polymorphism (cf.\ \secref{sec:terms}). For example, @{text "c |
889 polymorphism (cf.\ \secref{sec:terms}). For example, @{text "c |