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Proof step 16 from proof validval-putrkvs (previous step)

sk = fs ', fs = mkfs(class, ty, fieldvar), is_fskey(sk), validvals(str, rkvs, st), validval(str, val, ty, st) ⊦ sk = _length, ty = void_type, validval(str, val, ty, st[rkvs])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 15:
validvals(str, rkvs, st), validval(str, val, ty, st) ⊦ mkfs(class, ty, fieldvar) ' = _length, ty = void_type, validval(str, val, ty, st[rkvs])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_fskey(fs ')])]]