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LeanLink

Guides

  • Lean 4 from the Wolfram Language

Tech Notes

  • Exploring Mathlib with LeanLink
  • An Import Graph for Mathlib
  • Getting Started with LeanLink

Symbols

  • ImportDOT
  • LeanApp
  • LeanBVar
  • LeanCallGraph
  • LeanCompile
  • LeanCompileTyped
  • LeanConstantInfo
  • LeanConstant
  • LeanConst
  • LeanEnvironment
  • LeanExport
  • LeanExportString
  • LeanExprGraph
  • LeanExpr
  • LeanExprToType
  • LeanForall
  • LeanFreeEnvironment
  • LeanFVar
  • LeanGoal
  • LeanImport
  • LeanImportString
  • LeanLam
  • LeanLet
  • LeanLevelIMax
  • LeanLevelMax
  • LeanLevelMVar
  • LeanLevelParam
  • LeanLevelSucc
  • LeanLevelZero
  • LeanListConstants
  • LeanListTheorems
  • LeanLitNat
  • LeanLitStr
  • LeanLoadEnvironment
  • LeanMVar
  • LeanNoValue
  • LeanProj
  • LeanSort
  • LeanState
  • LeanTactic
  • LeanTerm
  • LeanToFunction
  • LeanTruncated
  • LeanValue
  • ProofToLean
Wolfram`LeanLink`
LeanLam
​
LeanLam
[name,type,body,binder]
represents a Lean
λ
-abstraction binding name of type type over body.
​
Details and Options
▪
binder is the bracket kind, as for
LeanForall
:
"default"
,
"implicit"
,
"instImplicit"
,
"strictImplicit"
.
▪
Where
LeanForall
is the function type,
LeanLam
is the function value. It renders as Lean
fun(x:T)=>body
, with
LeanBVar
referring back to the binder.
​
Examples  
(2)
Basic Examples  
(1)
Examples Initialization
The identity function on naturals,
fun(x:Nat)=>x
:
In[1]:=
LeanLam
"x",
LeanConst
["Nat"],
LeanBVar
[0],"default"
Out[1]=
fun(x:
Nat
)
#0
Properties & Relations  
(1)

SeeAlso
LeanForall
 
▪
LeanApp
 
▪
LeanBVar
 
▪
LeanTerm
RelatedGuides
▪
LeanLink
""

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