Remove contribs and examples

Everything has now been moved to a separate repository at
https://github.com/GrammaticalFramework/gf-contrib
The contents of the examples folder are build during SetupWeb

1 files changed, 0 insertions, 49 deletions

diff --git a/examples/category-theory/Equalizer.gf b/examples/category-theory/Equalizer.gf
deleted file mode 100644
index 4e12bd199..000000000
--- a/examples/category-theory/Equalizer.gf
+++ /dev/null
@@ -1,49 +0,0 @@
-abstract Equalizer = Morphisms ** {
-
-cat Equalizer ({c} : Category) ({x,y,z} : Obj c) (f,g : Arrow x y) (e : Arrow z x) ;
-
-data equalizer :  ({c} : Category)
-               -> ({x,y,z} : Obj c)
-               -> (f,g : Arrow x y)
-               -> (e : Arrow z x)
-               -> EqAr (comp f e) (comp g e)
-               -> Equalizer f g e ;
-
-fun idEqualizer : ({c} : Category)
-               -> ({x,y} : Obj c)
-               -> (f : Arrow x y)
-               -> Equalizer f f (id x) ;
-def idEqualizer {c} {x} {y} f = equalizer f f (id x) (eqCompL f (eqRefl (id x))) ;
-
-fun equalizer2mono :  ({c} : Category)
-                   -> ({x,y,z} : Obj c)
-                   -> (f,g : Arrow x y)
-                   -> (e : Arrow z x)
-                   -> Equalizer f g e
-                   -> Mono e ;
--- def equalizer2mono = ...
-
-cat CoEqualizer ({c} : Category) ({x,y,z} : Obj c) (e : Arrow y z) (f,g : Arrow x y) ;
-
-data coequalizer :  ({c} : Category)
-                 -> ({x,y,z} : Obj c)
-                 -> (e : Arrow y z)
-                 -> (f,g : Arrow x y)
-                 -> EqAr (comp e f) (comp e g)
-                 -> CoEqualizer e f g ;
-
-fun idCoEqualizer : ({c} : Category)
-                 -> ({x,y} : Obj c)
-                 -> (f : Arrow x y)
-                 -> CoEqualizer (id y) f f ;
-def idCoEqualizer {c} {x} {y} f = coequalizer (id y) f f (eqCompR (eqRefl (id y)) f) ;
-
-fun coequalizer2epi :  ({c} : Category)
-                    -> ({x,y,z} : Obj c)
-                    -> ({e} : Arrow y z)
-                    -> ({f,g} : Arrow x y)
-                    -> CoEqualizer e f g
-                    -> Epi e ;
--- def coequalizer2epi = ...
-
-}