Packages

  • package root
    Definition Classes
    root
  • package provingground

    This is work towards automated theorem proving based on learning, using homotopy type theory (HoTT) as foundations and natural language processing.

    This is work towards automated theorem proving based on learning, using homotopy type theory (HoTT) as foundations and natural language processing.

    The implementation of homotopy type theory is split into:

    • the object HoTT with terms, types, functions and dependent functions, pairs etc
    • the package induction with general inductive types and recursion/induction on these.

    The learning package has the code for learning.

    Scala code, including the spire library, is integrated with homotopy type theory in the scalahott package

    We have implemented a functor based approach to translation in the translation package, used for nlp as well as serialization and parsing.

    The library package is contains basic structures implemented in HoTT.

    Definition Classes
    root
  • package induction

    Much of the richness of HoTT is in the definitions of Inductive types (and their indexed counterparts) and of (dependent) functions on these by recursion and induction These are implemented using several layers of recursive definitions and diagonals (i.e., fixed points).

    Much of the richness of HoTT is in the definitions of Inductive types (and their indexed counterparts) and of (dependent) functions on these by recursion and induction These are implemented using several layers of recursive definitions and diagonals (i.e., fixed points). In HoTT, recursion and induction are applications of (dependent) functions rec_W,X and ind_W, Xs to the definition data.

    It is useful to capture information regarding inductive types and the recursion and induction functions in scala types. Our implementation is designed to do this.

    Inductive Type Definitions

    Inductive types are specified by introduction rules. Each introduction rule is specified in ConstructorShape (without specifying the type) and ConstructorTL including the specific type. The full definition is in ConstructorSeqTL.

    Recursion and Induction functions

    These are defined recursively, first for each introduction rule and then for the inductive type as a whole. A subtlety is that the scala type of the rec_W,X and induc_W, Xs functions depends on the scala type of the codomain X (or family Xs). To make these types visible, some type level calculations using implicits are done, giving traits ConstructorPatternMap and ConstructorSeqMap that have recursive definition of the recursion and induction functions, the former for the case of a single introduction rule. Traits ConstructorSeqMapper and ConstructorPatternMapper provide the lifts.

    Indexed Versions

    There are indexed versions of all these definitions, to work with indexed inductive type families.

    Definition Classes
    provingground
  • object ConstructorSeqDom
    Definition Classes
    induction
  • Cons
  • Empty

case class Empty[H <: Term with Subs[H]]() extends ConstructorSeqDom[HNil, H, HNil] with Product with Serializable

Empty sequence of introduction rules

Linear Supertypes
Serializable, Product, Equals, ConstructorSeqDom[HNil, H, HNil], AnyRef, Any
Type Hierarchy
Ordering
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Inherited
  1. Empty
  2. Serializable
  3. Product
  4. Equals
  5. ConstructorSeqDom
  6. AnyRef
  7. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new Empty()

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from Empty[H] toany2stringadd[Empty[H]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (Empty[H], B)
    Implicit
    This member is added by an implicit conversion from Empty[H] toArrowAssoc[Empty[H]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
  8. def ensuring(cond: (Empty[H]) => Boolean, msg: => Any): Empty[H]
    Implicit
    This member is added by an implicit conversion from Empty[H] toEnsuring[Empty[H]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  9. def ensuring(cond: (Empty[H]) => Boolean): Empty[H]
    Implicit
    This member is added by an implicit conversion from Empty[H] toEnsuring[Empty[H]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: Boolean, msg: => Any): Empty[H]
    Implicit
    This member is added by an implicit conversion from Empty[H] toEnsuring[Empty[H]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean): Empty[H]
    Implicit
    This member is added by an implicit conversion from Empty[H] toEnsuring[Empty[H]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from Empty[H] toStringFormat[Empty[H]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  14. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  15. def induc[C <: Term with Subs[C]](W: Typ[H], Xs: Func[H, Typ[C]]): InducType forSome {type InducType <: Term with Subs[InducType]}

    existential typed ind_W, X, used by the method indE of ConstructorSeqTL

    existential typed ind_W, X, used by the method indE of ConstructorSeqTL

    Definition Classes
    ConstructorSeqDom
  16. val introArgsVec: Vector[Int]
    Definition Classes
    Empty → ConstructorSeqDom
  17. def intros(typ: Typ[H]): HNil

    returns introduction rules, given an inductive type.

    returns introduction rules, given an inductive type.

    Definition Classes
    Empty → ConstructorSeqDom
  18. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  19. def mapped[C <: Term with Subs[C]](W: Typ[H]): ConstructorSeqMap.Empty[C, H]

    given a codomain, returns a mapped version, i.e.

    given a codomain, returns a mapped version, i.e. one with all the types needed for recursion and induction.

    Definition Classes
    Empty → ConstructorSeqDom
  20. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  21. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  22. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  23. val numIntros: Int
    Definition Classes
    Empty → ConstructorSeqDom
  24. def productElementNames: Iterator[String]
    Definition Classes
    Product
  25. def rec[C <: Term with Subs[C]](W: Typ[H], X: Typ[C]): RecType forSome {type RecType <: Term with Subs[RecType]}

    existential typed rec_W, X, used by the method recE of ConstructorSeqTL

    existential typed rec_W, X, used by the method recE of ConstructorSeqTL

    Definition Classes
    ConstructorSeqDom
  26. def subs(x: Term, y: Term): Empty[H]
    Definition Classes
    Empty → ConstructorSeqDom
  27. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  28. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  29. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  30. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated
  2. def →[B](y: B): (Empty[H], B)
    Implicit
    This member is added by an implicit conversion from Empty[H] toArrowAssoc[Empty[H]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use -> instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from ConstructorSeqDom[HNil, H, HNil]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd fromEmpty[H] to any2stringadd[Empty[H]]

Inherited by implicit conversion StringFormat fromEmpty[H] to StringFormat[Empty[H]]

Inherited by implicit conversion Ensuring fromEmpty[H] to Ensuring[Empty[H]]

Inherited by implicit conversion ArrowAssoc fromEmpty[H] to ArrowAssoc[Empty[H]]

Ungrouped