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Proof step 12 from proof validfieldlist-superset (previous step)

validfieldlist(str, r, sks, st), st ⊆ st0 ⊦ validfieldlist(str, r, sks, st0)

User applied rule structural induction

And obtained the following new goals

Proof step 1:
⊦ validfieldlist(str, r, [], st)
Proof step 11:
∀ str, r, st, st0. validfieldlist(str, r, sks0, st) ∧ st ⊆ st0 → validfieldlist(str, r, sks0, st0), validfieldlist(str, r, sk + sks0, st), st ⊆ st0 ⊦ validfieldlist(str, r, sk + sks0, st0)

Rule argument

[VARWITHVARSEQSARG : sks, ()]

Additional information

[[CONCRETESIMPRULES : ([CSIMPGEN : storekeys generated by [], +;])]]