.. index:: single: interval .. _interval/0:

.. rst-class:: right

object

interval

Basic temporal interval relations. An interval is represented by a compound term, i/2, with two ground arguments, the start and end points.

| Availability: | logtalk_load(intervals(loader))

| Author: Paulo Moura | Version: 1:3:0 | Date: 2026-05-13

| Compilation flags: | static, context_switching_calls

| Implements: | public :ref:`interval_protocol <interval_protocol/0>` | Aliases: | interval_protocol before/2 as b/2 | interval_protocol after/2 as bi/2 | interval_protocol meets/2 as m/2 | interval_protocol met_by/2 as mi/2 | interval_protocol overlaps/2 as o/2 | interval_protocol overlapped_by/2 as oi/2 | interval_protocol starts/2 as s/2 | interval_protocol started_by/2 as si/2 | interval_protocol during/2 as d/2 | interval_protocol contains/2 as di/2 | interval_protocol finishes/2 as f/2 | interval_protocol finished_by/2 as fi/2 | interval_protocol equal/2 as eq/2

| Remarks: | (none)

| Inherited public predicates: |  :ref:`interval_protocol/0::after/2`  :ref:`interval_protocol/0::before/2`  :ref:`interval_protocol/0::contains/2`  :ref:`interval_protocol/0::during/2`  :ref:`interval_protocol/0::equal/2`  :ref:`interval_protocol/0::finished_by/2`  :ref:`interval_protocol/0::finishes/2`  :ref:`interval_protocol/0::meets/2`  :ref:`interval_protocol/0::met_by/2`  :ref:`interval_protocol/0::new/3`  :ref:`interval_protocol/0::overlapped_by/2`  :ref:`interval_protocol/0::overlaps/2`  :ref:`interval_protocol/0::relation/3`  :ref:`interval_protocol/0::started_by/2`  :ref:`interval_protocol/0::starts/2`  :ref:`interval_protocol/0::valid/1`  

.. contents:: :local: :backlinks: top

Public predicates

(no local declarations; see entity ancestors if any)

Protected predicates

(no local declarations; see entity ancestors if any)

Private predicates

(no local declarations; see entity ancestors if any)

Operators

(none)