forked from Isabelle_DOF/Isabelle_DOF
35 lines
1.2 KiB
Plaintext
35 lines
1.2 KiB
Plaintext
theory Conceptual
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imports "../Isa_DOF"
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begin
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doc_class A =
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x :: int
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doc_class B =
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x :: "string" (* attributes live in their own name-space *)
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y :: "string list" <= "[]" (* and can have arbitrary type constructors *)
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(* LaTeX may have problems with this, though *)
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doc_class C = B +
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z :: "A option" <= None (* A LINK, i.e. an attribute that has a type
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referring to a document class. Mathematical
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relations over document items can be modeled. *)
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datatype enum = X1 | X2 | X3
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doc_class D = B +
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x :: "string" <= "''def''" (* overriding default *)
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a1 :: enum <= "X2" (* class - definitions may be mixed
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with arbitrary HOL-commands, thus
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also local definitions of enumerations *)
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a2 :: int <= 0
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doc_class F =
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r :: "thm list"
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b :: "(A \<times> C) set" <= "{}"
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doc_class M =
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trace :: "(A + C + D + F) list"
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where "A ~~ \<lbrace>C || D\<rbrace>\<^sup>* ~~ \<lbrakk>F\<rbrakk>"
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end |