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Proof step 6 from proof cyclic-putbyte (previous step)

∃ refs. dups(refs) ∧ refs .first = r ∧ validrefs(str, refs, (st[r1 -- i ', byteval(by)][r -- _type]) .type, st[r1 -- i ', byteval(by)]), okbytearray(r1, st) ⊦ cyclic(str, r, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
okbytearray(r1, st), dups(refs), validrefs(str, refs, st[refs .first -- _type] .type, st[r1 -- i ', byteval(by)]) ⊦ cyclic(str, refs .first, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (st[r -- i ', val][r0 -- _type]) = st[r0 -- _type]])]]