update

Task/Boolean-values/Julia/boolean-values-1.julia

@@ -0,0 +1,9 @@
+julia> t = true
+true
+
+julia> typeof(t)
+Bool
+julia> if 1
+         println("true")
+       end
+ERROR: type: non-boolean (Int64) used in boolean context

Task/Boolean-values/Julia/boolean-values-2.julia

@@ -0,0 +1,13 @@
+julia> bool
+# methods for generic function bool
+bool(x::Bool) at bool.jl:9
+bool(x::Number) at bool.jl:10
+bool(x::AbstractArray{Bool,N}) at abstractarray.jl:219
+bool(x::AbstractArray{T,N}) at abstractarray.jl:220
+julia> bool(-2:2)
+5-element Bool Array:
+  true
+  true
+ false
+  true
+  true

Task/Boolean-values/Raven/boolean-values.raven

@@ -0,0 +1,5 @@
+TRUE print
+FALSE print
+2 1 > print   # TRUE (-1)
+3 2 < print   # FALSE (0)
+42 FALSE !=   # TRUE (-1)