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Proof step 10 from proof validFields-fis (previous step)

fv = sk × val, r -- sk ∈ st, r ∈ st ⊦ validFields(r, fis + fv ', st) ↔ validFields(r, fis, st), sk = _length, sk = _type, sk ∈ fis

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 9:
r -- sk ∈ st, r ∈ st ⊦ validFields(r, fis + (sk × val) ', st) ↔ validFields(r, fis, st), sk = _length, sk = _type, sk ∈ fis

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]