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Proof step 16 from proof ac-in-03 (previous step)

¬ (is_fskey(fv .1) ∧ fv .1 .fs .class ≠ class1), jvmref -- _type ∈ addclass(class1, fv ' + fis0, st), jvmref ∈ addclass(class1, fv ' + fis0, st), ∀ class, st0. jvmref -- _type ∈ addclass(class, fis0, st0) ∧ jvmref ∈ addclass(class, fis0, st0) → jvmref -- _type ∈ st0 ⊦ jvmref -- _type ∈ st, _type ∈ fv ', _type ∈ fis0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 15:
jvmref -- _type ∈ addclass(class1, fv ' + fis0, st), jvmref ∈ addclass(class1, fv ' + fis0, st), ∀ class, st0. jvmref -- _type ∈ addclass(class, fis0, st0) ∧ jvmref ∈ addclass(class, fis0, st0) → jvmref -- _type ∈ st0 ⊦ jvmref -- _type ∈ st, _type ∈ fv ', _type ∈ fis0, ¬ is_indexkey(fv .1) ∧ fv .1 .fs .class ≠ class1

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ is_fskey(sk) ↔ is_indexkey(sk)])]]