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Proof step 19 from proof compatfields-mode (previous step)

sk = fs ', fs = mkfs(class0, ty, fieldvar), is_fskey(sk), r -- sk ∈ st, sk ∈ instfields(class), r ∈ st, compat(str, st[r -- sk], ty, st) ⊦ r = jvmref, compat(str, st[r -- sk], ty, st[_mode, val])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 18:
r -- mkfs(class0, ty, fieldvar) ' ∈ st, mkfs(class0, ty, fieldvar) ' ∈ instfields(class), r ∈ st, compat(str, st[r -- mkfs(class0, ty, fieldvar) '], ty, st) ⊦ r = jvmref, compat(str, st[r -- mkfs(class0, ty, fieldvar) '], ty, st[_mode, val])

Rule argument

[emptyarg]

Additional information

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