27 lines
600 B
Text
27 lines
600 B
Text
|
variable A : Type.{1}
|
||
|
|
variable a : A
|
||
|
|
variable g : A → A
|
||
|
|
variable f : A → A → A
|
||
|
|
precedence `|` : 0
|
||
|
|
|
||
|
|
(*
|
||
|
|
local f = Const("f")
|
||
|
|
local g = Const("g")
|
||
|
|
local bar = name("|")
|
||
|
|
local rcurly = name("}")
|
||
|
|
local lcurly = name("{")
|
||
|
|
function parse_set()
|
||
|
|
parser.check_token_next(lcurly, "'{' expected")
|
||
|
|
local s = parser.parse_binder()
|
||
|
|
parser.check_token_next(bar, "'|' expected")
|
||
|
|
local e = parser.parse_scoped_expr(s)
|
||
|
|
parser.check_token_next(rcurly, "'}' expected")
|
||
|
|
print(e)
|
||
|
|
return parser.abstract(s, g(e))
|
||
|
|
end
|
||
|
|
*)
|
||
|
|
|
||
|
|
|
||
|
|
notation `set` A:(call parse_set) := A
|
||
|
|
check set { x : A | f x x }
|