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Proof step 37 from proof disjoint-def-fits (previous step)

refs0 = r2 + refs1, (r1 ' + refs2) .last = refs0 .last, validrefs(str, refs0, st[r2 -- _type] .type, st), validreflist(str, mkjavavalues(refs), mkclasstype(`java.lang.Object' .class), st), r1 ∈ refs, r2 ∈ refs, validrefs(str, r1 ' + refs2, st[r1 -- _type] .type, 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 ⊦ refs0 = [], r1 = r2, refs0 .last = jvmref

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 36:
(r1 ' + refs2) .last = (r2 ' + refs1) .last, validreflist(str, mkjavavalues(refs), mkclasstype(`java.lang.Object' .class), st), r1 ∈ refs, r2 ∈ refs, validrefs(str, r1 ' + refs2, st[r1 -- _type] .type, st), validrefs(str, r2 ' + refs1, st[r2 -- _type] .type, 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 ⊦ r1 = r2, (r2 ' + refs1) .last = jvmref

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPSEQ : ⊦ r ' + refs ≠ []], [CSIMPSEQ : ⊦ r + refs = r ' + refs])]]