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Proof step 22 from proof junkref-put-other-fieldclass (conclusion)

⊦ ¬ junkref(str, r, st) ∧ ¬ contains(str, st[r -- _type] .type, fs) ∧ fs ' ≠ _type → ¬ junkref(str, r, st[r0 -- fs ', val])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 21:
junkref(str, r, st[r0 -- fs ', val]) ⊦ fs ' = _type, junkref(str, r, st), contains(str, st[r -- _type] .type, fs)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]