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Proof step 13 from proof validref-pseq (previous step)

ps=(r, st, r1, st1), okreftype(refval(r1), ty, st1) ∧ ¬ junkref(`docs2store', r1, st1) ⊦ junkref(`docs2store', r, st), validref(`docs2store', r, ty, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 12:
okreftype(refval(r1), ty, st1), ps=(r, st, r1, st1) ⊦ junkref(`docs2store', r1, st1), validref(`docs2store', r, ty, st), junkref(`docs2store', r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]