Struct Pred 

pub struct Pred(pub String);

Represents a predicate symbol with a given name.

Tuple Fields

0: String

Implementations

impl Pred

pub fn app(self, terms: Vec<Term>) -> Formula

Applies the receiver on a list of terms. The length of terms must be equal to the (assumed) arity of the predicate.

Note: the definition of Pred does not impose any restrictions on the arity of predicate symbols. The user is expected to assume the arity of the predicate.

pub fn app0(self) -> Formula

Applies the (nullary) receiver.

pub fn app1(self, first: Term) -> Formula

Applies the (unary) receiver on a term.

pub fn app2(self, first: Term, second: Term) -> Formula

Applies the (binary) receiver on two terms.

pub fn app3(self, first: Term, second: Term, third: Term) -> Formula

Applies the (ternary) receiver on three terms.

pub fn app4( self, first: Term, second: Term, third: Term, fourth: Term, ) -> Formula

Applies the (4-ary) receiver on four terms.

pub fn app5( self, first: Term, second: Term, third: Term, fourth: Term, fifth: Term, ) -> Formula

Applies the (5-ary) receiver on five terms.

Trait Implementations

impl Clone for Pred

fn clone(&self) -> Pred

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Pred

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Pred

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl From<&String> for Pred

fn from(name: &String) -> Self

Converts to this type from the input type.

impl From<&str> for Pred

fn from(name: &str) -> Self

Converts to this type from the input type.

impl Hash for Pred

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Pred

fn cmp(&self, other: &Pred) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Pred

fn eq(&self, other: &Pred) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Pred

fn partial_cmp(&self, other: &Pred) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Pred

impl StructuralPartialEq for Pred