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Signature symbols in this unit

Symbol	Specification	Kind	Type
# .	directory-tree-base	f	entries-tree → nat
# .	string	f	string → nat
. '	string	f	char → string
. + .	nat-basic	f	nat × nat → nat
. + .	string	f	char × string → string
. + .	string	f	string × char → string
. + .	string	f	string × string → string
. ++ .	string	f	string × char → string
. +1	nat-basic	f	nat → nat
. +2 .	string	f	char × char → string
. - .	nat	pf	nat × nat → nat with λ n, m. n ≥ m
. -- .	directory-tree-base	f	entries-tree × string → entries-tree
. -1	nat-basic	pf	nat → nat with λ n. n ≠ 0
. -1l .	string	f	string × char → string
. -l .	string	f	string × char → string
. -p .	string	f	string × nat → string
. .butlast	string	pf	string → string with λ str. str ≠ ""
. .char1	string	pf	string → char with λ str. str ≠ ""
. .last	string	pf	string → char with λ str. str ≠ ""
. .rstring	string	pf	string → string with λ str. str ≠ ""
. < .	nat-basic	p	nat × nat
. > .	nat	p	nat × nat
. [ . ]	directory-tree-base	pf	entries-tree × string → directory-tree with λ sdt, str. str ∈ sdt
. [ . ]	string	pf	string × nat × char → string with λ str, n, char. n < # str
. [ . ]	string	pf	string × nat → char with λ str, n. n < # str
. [ . ]	directory-tree-base	f	entries-tree × string × directory-tree → entries-tree
. × .	directory-tree-base	f	string × directory-tree → stringdirectorytree
. ∈ .	directory-tree-base	p	stringdirectorytree × entries-tree
. ∈ .	directory-tree-base	p	string × entries-tree
. ∈ .	string	p	char × string
. ≤ .	nat	p	nat × nat
. ≥ .	nat	p	nat × nat
. ⊆ .	directory-tree-base	p	entries-tree × entries-tree
. ⊑ .	string	p	string × string
. ⊒ .	string	p	string × string
∅	directory-tree-base	c	entries-tree
⊏	string	p	string × string
butlastn	string	pf	nat × string → string with λ n, str. n ≤ # str
char	char	s
char	char	v	char
char0	char	v	char
char1	char	v	char
char2	char	v	char
directory-tree	directory-tree-base	s
disj	string	p	string × string
dnode	directory-tree-base	f	metadata × entries-tree → directory-tree
dups	string	p	string
entries-tree	directory-tree-base	s
fid	file-id	s
fid	file-id	v	fid
fid0	directory-tree-base	v	fid
fillfirst	string	f	nat × char × string → string
firstn	string	pf	nat × string → string with λ n, str. n ≤ # str
fnode	directory-tree-base	f	fid → directory-tree
frome	string	f	string × char → string
lastn	string	pf	nat × string → string with λ n, str. n ≤ # str
m	nat-basic	v	nat
md	metadata	v	metadata
md0	directory-tree-base	v	metadata
metadata	metadata	s
mklist	string	f	char × nat → string
n	nat-basic	v	nat
n0	nat-basic	v	nat
n1	nat-basic	v	nat
nat	nat-basic	s
pos	string	f	char × string → nat
restn	string	pf	nat × string → string with λ n, str. n ≤ # str
rev	string	f	string → string
rmdup	string	f	string → string
sdt	directory-tree-base	v	entries-tree
sdt0	directory-tree-base	v	entries-tree
sdt1	directory-tree-base	v	entries-tree
sdt2	directory-tree-base	v	entries-tree
str	string	v	string
str-tree	directory-tree-base	v	stringdirectorytree
str0	string	v	string
str1	string	v	string
str2	string	v	string
str3	string	v	string
string	string	s
stringdirectorytree	directory-tree-base	s
sublist	string	pf	nat × nat × string → string with λ n, m, str. n + m ≤ # str
tree	directory-tree-base	v	directory-tree
tree0	directory-tree-base	v	directory-tree
tree1	directory-tree-base	v	directory-tree
tree2	directory-tree-base	v	directory-tree