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 | Predicate member/2 |
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- swipl
- library
- debug.pl -- Print debug messages and test assertions
- settings.pl -- Setting management
- arithmetic.pl
- predicate_options.pl -- Access and analyse predicate options
- error.pl -- Error generating support
- option.pl -- Option list processing
- broadcast.pl -- Event service
- lists.pl -- List Manipulation
- member/2
- append/3
- append/2
- prefix/2
- select/3
- selectchk/3
- select/4
- selectchk/4
- nextto/3
- delete/3
- nth0/3
- nth1/3
- nth0/4
- nth1/4
- last/2
- proper_length/2
- same_length/2
- reverse/2
- permutation/2
- flatten/2
- clumped/2
- subseq/3
- max_member/2
- min_member/2
- max_member/3
- min_member/3
- sum_list/2
- max_list/2
- min_list/2
- numlist/3
- is_set/1
- list_to_set/2
- intersection/3
- union/3
- subset/2
- subtract/3
- apply.pl -- Apply predicates on a list
- operators.pl -- Manage operators
- pairs.pl -- Operations on key-value lists
- prolog_source.pl -- Examine Prolog source-files
- thread_pool.pl -- Resource bounded thread management
- shlib.pl -- Utility library for loading foreign objects (DLLs, shared objects)
- gensym.pl -- Generate unique symbols
- main.pl -- Provide entry point for scripts
- readutil.pl -- Read utilities
- aggregate.pl -- Aggregation operators on backtrackable predicates
- quasi_quotations.pl -- Define Quasi Quotation syntax
- occurs.pl -- Finding and counting sub-terms
- ordsets.pl -- Ordered set manipulation
- assoc.pl -- Binary associations
- ugraphs.pl -- Graph manipulation library
- url.pl -- Analysing and constructing URL
- www_browser.pl -- Open a URL in the users browser
- prolog_colour.pl -- Prolog syntax colouring support.
- record.pl -- Access compound arguments by name
- prolog_xref.pl -- Prolog cross-referencer data collection
- iostream.pl -- Utilities to deal with streams
- atom.pl -- Operations on atoms
- prolog_pack.pl -- A package manager for Prolog
- solution_sequences.pl -- Modify solution sequences
- prolog_stack.pl -- Examine the Prolog stack
- sandbox.pl -- Sandboxed Prolog code
- apply_macros.pl -- Goal expansion rules to avoid meta-calling
- yall.pl -- Lambda expressions
- prolog_format.pl -- Analyse format specifications
- pure_input.pl -- Pure Input from files and streams
- utf8.pl -- UTF-8 encoding/decoding on lists of character codes.
- base64.pl -- Base64 encoding and decoding
- persistency.pl -- Provide persistent dynamic predicates
- codesio.pl -- I/O on Lists of Character Codes
- git.pl -- Run GIT commands
- prolog_versions.pl -- Demand specific (Prolog) versions
- random.pl -- Random numbers
- prolog_code.pl -- Utilities for reasoning about code
- make.pl -- Reload modified source files
- ansi_term.pl -- Print decorated text to ANSI consoles
- backcomp.pl -- Backward compatibility
- base32.pl -- Base32 encoding and decoding
- charsio.pl -- I/O on Lists of Character Codes
- check.pl -- Consistency checking
- check_installation.pl -- Check installation issues and features
- dialect.pl -- Support multiple Prolog dialects
- pio.pl -- Pure I/O
- coinduction.pl -- Co-Logic Programming
- console_input.pl
- csv.pl -- Process CSV (Comma-Separated Values) data
- ctypes.pl -- Character code classification
- date.pl -- Process dates and times
- rbtrees.pl -- Red black trees
- prolog_wrap.pl -- Wrapping predicates
- shell.pl -- Elementary shell commands
- terms.pl -- Term manipulation
- quintus.pl -- Quintus compatibility
- tables.pl -- XSB interface to tables
- nb_set.pl -- Non-backtrackable sets
- thread.pl -- High level thread primitives
- dicts.pl -- Dict utilities
- dif.pl -- The dif/2 constraint
- edinburgh.pl -- Some traditional Edinburgh predicates
- edit.pl -- Editor interface
- exceptions.pl -- Exception classification
- explain.pl -- Describe Prolog Terms
- modules.pl -- Module utility predicates
- sort.pl
- fastrw.pl -- Fast reading and writing of terms
- files.pl
- hashtable.pl -- Hash tables
- heaps.pl -- heaps/priority queues
- help.pl -- Text based manual
- hotfix.pl -- Load hotfixes into executables
- increval.pl -- Incremental dynamic predicate modification
- intercept.pl -- Intercept and signal interface
- lazy_lists.pl -- Lazy list handling
- listing.pl -- List programs and pretty print clauses
- macros.pl -- Macro expansion
- nb_rbtrees.pl -- Non-backtrackable operations on red black trees
- obfuscate.pl -- Code obfuscating
- optparse.pl -- command line parsing
- oset.pl -- Ordered set manipulation
- portray_text.pl -- Portray text
- pprint.pl -- Pretty Print Prolog terms
- prolog_autoload.pl -- Autoload all dependencies
- prolog_breakpoints.pl -- Manage Prolog break-points
- prolog_clause.pl -- Get detailed source-information about a clause
- prolog_codewalk.pl -- Prolog code walker
- prolog_config.pl -- Provide configuration information
- prolog_coverage.pl -- Coverage analysis tool
- prolog_debug.pl -- User level debugging tools
- prolog_deps.pl -- Compute file dependencies
- prolog_evaluable.pl -- Inspect properties of evaluable functions
- prolog_history.pl -- Per-directory persistent commandline history
- prolog_jiti.pl -- Just In Time Indexing (JITI) utilities
- prolog_locale.pl -- Tweak the locale for Prolog development
- prolog_metainference.pl -- Infer meta-predicate properties
- prolog_profile.pl -- Execution profiler
- prolog_qlfmake.pl -- Compile the library to QLF format
- prolog_trace.pl -- Print access to predicates
- qpforeign.pl -- Quintus compatible foreign loader
- qsave.pl -- Save current program as a state or executable
- zip.pl -- Access resource ZIP archives
- readln.pl -- Read line as list of tokens
- rwlocks.pl -- Read/write locks
- statistics.pl -- Get information about resource usage
- streams.pl -- Manage Prolog streams
- strings.pl -- String utilities
- system.pl -- System utilities
- threadutil.pl -- Interactive thread utilities
- tty.pl -- Terminal operations
- varnumbers.pl -- Utilities for numbered terms
- vm.pl -- SWI-Prolog Virtual Machine utilities
- wfs.pl -- Well Founded Semantics interface
- when.pl -- Conditional coroutining
- writef.pl -- Old-style formatted write
- library
- member(?Elem, ?List)
- True if Elem is a member of List. The SWI-Prolog definition
differs from the classical one. Our definition avoids unpacking
each list element twice and provides determinism on the last
element. E.g. this is deterministic:
member(X, [One]).- author
- - Gertjan van Noord
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