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Proof step 22 from proof validref-subspec-samesubclasses-01 (previous step)

¬ (¬ has_classtype(st[r -- _type] .type) ∧ r ≠ jvmref ∧ ¬ junkref(str0, r, st)), same-subclasses-contains(ty .jtelemtype .class, str, str0), tdname+∃(str0, ty .jtelemtype .class), st[r -- _type] .type ≤ ty, junkref(str, r, st) ⊦ r = jvmref, junkref(str0, r, st), same-subclasses-contains(st[r -- _type] .type .jtelemtype .class, str, str0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 21:
same-subclasses-contains(ty .jtelemtype .class, str, str0), tdname+∃(str0, ty .jtelemtype .class), st[r -- _type] .type ≤ ty, junkref(str, r, st), has_classtype(st[r -- _type] .type) ⊦ r = jvmref, junkref(str0, r, st), same-subclasses-contains(st[r -- _type] .type .jtelemtype .class, str, str0)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ has_classtype (st[r -- _type] .type) ∧ r ≠ jvmref ∧ ¬ junkref(str, r, st) → ¬ junkref(str0, r, st)])]]