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Proof step 13 from proof validstatfields-initundone (previous step)

statfields(class) .first ∈ statfields(class) → validstatfield(str, statfields(class) .first, st) ⊦ statfields(class) = [], initdone(class, st), tdname∃(str, class)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 12:
validstatfield(str, statfields(class) .first, st) ⊦ statfields(class) = [], initdone(class, st), tdname∃(str, class)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ sks .first ∈ sks ↔ sks ≠ []])]]