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InvalidGoalShape when trying to instantiate an axiom in clone. #746

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strub opened this issue Mar 10, 2025 · 1 comment · May be fixed by #748

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strub commented Mar 10, 2025

See example:

require import AllCore PROM FinType.

type u.
clone FinType as FTu with type t <= u.

section.
local clone FullRO as FROu with type in_t <- u. 

(* anomaly: EcLib.EcCoreGoal.InvalidGoalShape
local clone FROu.FinEager as FEu with 
  axiom FinFrom.enum_spec <- FTu.enum_spec. 
*)

The text was updated successfully, but these errors were encountered:

strub self-assigned this

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strub commented Mar 10, 2025

@MM45 There is indeed a bug in your clone. You should have:

local clone FROu.FinEager as FEu with
  op FinFrom.enum <- FTu.enum,
  axiom FinFrom.enum_spec <- FTu.enum_spec.

I will push a fix so that a proper error message is printed.

strub linked a pull request

that will close this issue

Hi-level error message in clone (axiom <-) #748

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