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Break the System

Feel free and try to fool the system and/or your favourite Proof Assistant.

Resources

Download Files

Definitions File

theory Defs
  imports Main
begin  
end

Template File

theory Submission
  imports Defs
begin

lemma soundnessbug: "False" sorry

end

Check File

theory Check
imports Submission
begin

                     
lemma "False"
by (rule Submission.soundnessbug)
   

end
Download Files

Definitions File

theory Defs
  imports Main
begin  
end

Template File

theory Submission
  imports Defs
begin

lemma soundnessbug: "False" sorry

end

Check File

theory Check
imports Submission
begin

                     
lemma "False"
by (rule Submission.soundnessbug)
   

end
Download Files

Definitions File

(* nothing here *)

Template File

Theorem soundnessbug : False.
Proof.
  (* todo? *)
Admitted.

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