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Proof step 27 from proof validstatfield-put-statfield (previous step)

sk .fs = mkfs(class0, ty0, fieldvar0), sk0 .fs = mkfs(class, ty, fieldvar), is_indexkey(sk) ∨ ty0 ≠ void_type ∨ sk .fs ≠ mkfs(`java.lang.Object' .class, void_type, `uninit' .field) ∧ (is_indexkey(sk0) ∨ sk .fs ≠ mkfs(class, void_type, `initstate' .field)) ⊦ validstatfield(str, sk0, st[jvmref -- sk, val]) ↔ validstatfield(str, sk0, st), sk = sk0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 26:
sk0 .fs = mkfs(class, ty, fieldvar), sk .fs = mkfs(class0, ty0, fieldvar0), is_indexkey(sk) ∨ ty0 ≠ void_type ∨ (class0 ≠ `java.lang.Object' .class ∨ fieldvar0 ≠ `uninit' .field) ∧ (is_indexkey(sk0) ∨ class0 ≠ class ∨ fieldvar0 ≠ `initstate' .field) ⊦ sk = sk0, validstatfield(str, sk0, st[jvmref -- sk, val]) ↔ validstatfield(str, sk0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ mkfs(class1, ty, fieldvar) = mkfs(class2, ty0, fieldvar0) ↔ ¬ ¬ ( class1 = class2 ∧ ty = ty0 ∧ fieldvar = fieldvar0)])]]