# SRFI 1 - List library

The `(srfi 1)` provides a coherent and comprehensive set of list-processing procedures.

See the [SRFI document](http://srfi.schemers.org/srfi-1/srfi-1.html) for more information.

- [`xcons`](#xcons)
- [`tree-copy`](#tree-copy)
- [`make-list`](#make-list)
- [`list-tabulate`](#list-tabulate)
- [`cons*`](#cons)
- [`list-copy`](#list-copy)
- [`proper-list?`](#proper-list)
- [`circular-list?`](#circular-list)
- [`dotted-list?`](#dotted-list)
- [`not-pair?`](#not-pair)
- [`null-list?`](#null-list)
- [`list=`](#list=)
- [`circular-list`](#circular-list)
- [`length+`](#length)
- [`iota`](#iota)
- [`first`](#first)
- [`second`](#second)
- [`third`](#third)
- [`fourth`](#fourth)
- [`fifth`](#fifth)
- [`sixth`](#sixth)
- [`seventh`](#seventh)
- [`eighth`](#eighth)
- [`ninth`](#ninth)
- [`tenth`](#tenth)
- [`car+cdr`](#carcdr)
- [`take`](#take)
- [`drop`](#drop)
- [`take-right`](#take-right)
- [`drop-right`](#drop-right)
- [`take!`](#take-1)
- [`drop-right!`](#drop-right-1)
- [`split-at`](#split-at)
- [`split-at!`](#split-at-1)
- [`last`](#last)
- [`last-pair`](#last-pair)
- [`zip`](#zip)
- [`unzip1`](#unzip1)
- [`unzip2`](#unzip2)
- [`unzip3`](#unzip3)
- [`unzip4`](#unzip4)
- [`unzip5`](#unzip5)
- [`count`](#count)
- [`append!`](#append)
- [`append-reverse`](#append-reverse)
- [`append-reverse!`](#append-reverse-1)
- [`concatenate`](#concatenate)
- [`concatenate!`](#concatenate-1)
- [`unfold`](#unfold)
- [`fold`](#fold)
- [`pair-fold`](#pair-fold)
- [`reduce`](#reduce)
- [`unfold-right`](#unfold-right)
- [`fold-right`](#fold-right)
- [`pair-fold-right`](#pair-fold-right)
- [`reduce-right`](#reduce-right)
- [`append-map`](#append-map)
- [`append-map!`](#append-map-1)
- [`map!`](#map)
- [`pair-for-each`](#pair-for-each)
- [`filter-map`](#filter-map)
- [`map-in-order`](#map-in-order)
- [`filter`](#filter)
- [`partition`](#partition)
- [`remove`](#remove)
- [`filter!`](#filter-1)
- [`partition!`](#partition-1)
- [`remove!`](#remove-1)
- [`find`](#find)
- [`find-tail`](#find-tail)
- [`any`](#any)
- [`every`](#every)
- [`list-index`](#list-index)
- [`take-while`](#take-while)
- [`drop-while`](#drop-while)
- [`take-while!`](#take-while-1)
- [`span`](#span)
- [`break`](#break)
- [`span!`](#span-1)
- [`break!`](#break-1)
- [`delete`](#delete)
- [`delete!`](#delete-1)
- [`alist-cons`](#alist-cons)
- [`alist-copy`](#alist-copy)
- [`delete-duplicates`](#delete-duplicates)
- [`delete-duplicates!`](#delete-duplicates-1)
- [`alist-delete`](#alist-delete)
- [`alist-delete!`](#alist-delete-1)
- [`reverse!`](#reverse)
- [`lset<=`](#lset)
- [`lset=`](#lset-1)
- [`lset-adjoin`](#lset-adjoin)
- [`lset-union`](#lset-union)
- [`lset-intersection`](#lset-intersection)
- [`lset-difference`](#lset-difference)
- [`lset-xor`](#lset-xor)
- [`lset-diff+intersection`](#lset-diffintersection)
- [`lset-union!`](#lset-union)
- [`lset-intersection!`](#lset-intersection-1)
- [`lset-difference!`](#lset-difference-1)
- [`lset-xor!`](#lset-xor-1)

#xcons
#tree-copy
#make-list
#list-tabulate
#cons*
#list-copy 
#proper-list?
#circular-list?
#dotted-list?
#not-pair?
#null-list?
#list=
#circular-list
#length+
#iota
#first
#second
#third
#fourth
#fifth
#sixth
#seventh
#eighth
#ninth
#tenth
#car+cdr
#take
#drop
#take-right
#drop-right
#take!
#drop-right!
#split-at
#split-at!
#last
#last-pair
#zip
#unzip1
#unzip2
#unzip3
#unzip4
#unzip5
#count
#append!
#append-reverse
#append-reverse!
#concatenate
#concatenate!
#unfold
#fold
#pair-fold
#reduce
#unfold-right
#fold-right
#pair-fold-right
#reduce-right
#append-map
#append-map!
#map!
#pair-for-each
#filter-map
#map-in-order
#filter
#partition
#remove
#filter!
#partition!
#remove! 
#find
#find-tail
#any
#every
#list-index
#take-while
#drop-while
#take-while!
#span
#break
#span!
#break!
#delete
#delete!
#alist-cons
#alist-copy
#delete-duplicates
#delete-duplicates!
#alist-delete
#alist-delete!
#reverse! 
#lset<=
#lset=
#lset-adjoin  
#lset-union
#lset-intersection
#lset-difference
#lset-xor
#lset-diff+intersection
#lset-union!
#lset-intersection!
#lset-difference!
#lset-xor!