lean2/library/init/reserved_notation.lean

100 lines
2.3 KiB
Text
Raw Normal View History

/-
Copyright (c) 2014 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Module: init.reserved_notation
Authors: Leonardo de Moura, Jeremy Avigad
-/
2014-12-01 04:34:12 +00:00
prelude
import init.datatypes
notation `assume` binders `,` r:(scoped f, f) := r
notation `take` binders `,` r:(scoped f, f) := r
/-
Global declarations of right binding strength
If a module reassigns these, it will be incompatible with other modules that adhere to these
conventions.
When hovering over a symbol, use "C-u C-x =" to see how to input it.
-/
definition std.prec.max : num := 1024 -- the strength of application, identifiers, (, [, etc.
definition std.prec.arrow : num := 25
/-
The next definition is "max + 10". It can be used e.g. for postfix operations that should
be stronger than application.
-/
definition std.prec.max_plus :=
num.succ (num.succ (num.succ (num.succ (num.succ (num.succ (num.succ (num.succ (num.succ
(num.succ std.prec.max)))))))))
/- Logical operations and relations -/
reserve prefix `¬`:40
2014-11-09 01:54:17 +00:00
reserve prefix `~`:40
reserve infixr `∧`:35
reserve infixr `/\`:35
reserve infixr `\/`:30
reserve infixr ``:30
reserve infix `<->`:25
reserve infix `↔`:25
reserve infix `=`:50
reserve infix `≠`:50
reserve infix `≈`:50
reserve infix ``:50
reserve infixr `∘`:60 -- input with \comp
reserve postfix `⁻¹`:std.prec.max_plus -- input with \sy or \-1 or \inv
reserve infixl `⬝`:75
reserve infixr `▸`:75
/- types and type constructors -/
reserve infixl `⊎`:25
reserve infixl `×`:30
/- arithmetic operations -/
reserve infixl `+`:65
reserve infixl `-`:65
reserve infixl `*`:70
reserve infixl `div`:70
reserve infixl `mod`:70
reserve infixl `/`:70
reserve prefix `-`:100
reserve infix `<=`:50
reserve infix `≤`:50
reserve infix `<`:50
reserve infix `>=`:50
reserve infix `≥`:50
reserve infix `>`:50
/- boolean operations -/
reserve infixl `&&`:70
reserve infixl `||`:65
/- set operations -/
reserve infix `∈`:50
reserve infix `∉`:50
reserve infixl `∩`:70
reserve infixl ``:65
/- other symbols -/
reserve notation `(` a `|` b `)`
reserve infixl `++`:65
reserve infixr `::`:65
-- Yet another trick to anotate an expression with a type
definition is_typeof (A : Type) (a : A) : A := a
notation `typeof` t `:` T := is_typeof T t