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Proof step 45 from proof disjoint-def-fits (conclusion)

⊦ validreflist(str, mkjavavalues(refs), mkclasstype(`java.lang.Object' .class), st) → ( disjoint(str, refs, st) ↔ ¬ (∃ r1, sks1, r2, sks2. r1 ∈ refs ∧ r2 ∈ refs ∧ r1 ≠ r2 ∧ fits(r1, sks1, st) ∧ fits(r2, sks2, st) ∧ st[r1 -- sks1] = st[r2 -- sks2] ∧ st[r1 -- sks1] .refval ≠ jvmref))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 44:
validreflist(str, mkjavavalues(refs), mkclasstype(`java.lang.Object' .class), st) ⊦ disjoint(str, refs, st) ↔ (∀ r, sks, r0, sks0. ¬ r ∈ refs ∨ ¬ r0 ∈ refs ∨ r = r0 ∨ ¬ fits(r, sks, st) ∨ ¬ fits(r0, sks0, st) ∨ st[r -- sks] ≠ st[r0 -- sks0] ∨ st[r -- sks] .refval = jvmref)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]