package lambdapi
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lambdapi.tool
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Library
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package lambdapi
Legend:
Library
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Library
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Typing context.
type_of x ctx returns the type of x in the context ctx when it appears in it, and
def_of x ctx returns the definition of x in the context ctx if it appears, and None otherwise
mem x ctx tells whether variable x is mapped in the context ctx.
to_prod ctx t builds a product by abstracting over the context ctx, in the term t. It returns the number of products as well.
val to_prod_box : Term.bctxt -> Term.tbox -> Term.tbox * intto_prod_box bctx t is similar to to_prod bctx t but operates on boxed contexts and terms.
val box_context : Term.ctxt -> Term.bctxtbox_context ctx lifts context ctx to a boxed context.
to_abst ctx t builds a sequence of abstractions over the context ctx, in the term t.
to_let ctx t adds the defined variables of ctx on top of t.
sub ctx vs returns the sub-context of ctx made of the variables of vs.
unfold ctx t behaves like Term.unfold unless term t is of the form Vari(x) with x defined in ctx. In this case, t is replaced by the definition of x in ctx. In particular, if no operation is carried out on t, we have unfold ctx t == t.
get_args ctx t decomposes term t as Term.get_args does, but any variable encountered is replaced by its definition in ctx (if it exists).