changed names of resource-1.3; added a note on homepage on release

lib/resource/mathematical/Symbol.gf

@@ -1,46 +0,0 @@
---1 Symbolic expressions
-
--- *Note*. This module is not automatically included in the main
--- grammar [Lang Lang.html].
-
-abstract Symbol = Cat, PredefAbs ** {
-
---2 Noun phrases with symbols and numbers
-
-fun
-
-  SymbPN   : Symb -> PN ;                -- x
-  IntPN    : Int -> PN ;                 -- 27
-  FloatPN  : Float -> PN ;               -- 3.14159
-  NumPN    : Num -> PN ;
-  CNNumNP  : CN -> Num -> NP ;           -- level five ; level 5
-  CNSymbNP : Det -> CN -> [Symb] -> NP ; -- (the) (2) numbers x and y
-
-
---2 Sentence consisting of a formula
-
-  SymbS    : Symb -> S ;                 -- A
-
---2 Symbols as numerals
-
-  SymbNum  : Symb -> Num ;               -- n
-  SymbOrd  : Symb -> Ord ;               -- n'th
-
---2 Symbol lists
-
--- A symbol list has at least two elements. The last two are separated
--- by a conjunction ("and" in English), the others by commas.
--- This produces "x, y and z", in English. 
-
-cat
-  Symb ;
-  [Symb]{2} ;
-
-fun
-  MkSymb : String -> Symb ;
-
---2 Obsolescent
-
-  CNIntNP  : CN -> Int -> NP ;           -- level 53 (covered by CNNumNP)
-
-}