32 lines
1 KiB
Text
32 lines
1 KiB
Text
/-
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Copyright (c) 2014 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Authors: Leonardo de Moura
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-/
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prelude
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import init.core init.logic init.category init.data.basic
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import init.propext init.funext init.category.combinators init.function init.classical
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import init.util init.coe init.wf init.meta init.algebra init.data
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def debugger.attr : user_attribute :=
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{ name := `breakpoint,
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descr := "breakpoint for debugger" }
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run_command attribute.register `debugger.attr
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open tactic
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/-
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Define id_locked using meta-programming because we don't have
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syntax for setting reducibility_hints.
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See module init.meta.declaration.
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-/
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run_command do
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l ← return $ level.param `l,
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Ty ← return $ expr.sort l,
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type ← to_expr `(Π {α : %%Ty}, α → α),
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val ← to_expr `(λ {α : %%Ty} (a : α), a),
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add_decl (declaration.defn `id_locked [`l] type val reducibility_hints.opaque tt)
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lemma {u} id_locked_eq {α : Type u} (a : α) : id_locked a = a :=
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rfl
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