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Proof step 22 from proof validref-putbar (previous step)

∀ str, r, ty, st, r0, i. validref(str, r, ty, st) ∧ okbytearray(r0, st) → r = r0 ∨ validref(str, r, ty, putByteArray(bytes0, r0, i, st)), validref(str, r, ty, st), okbytearray(r0, st) ⊦ r = r0, validref(str, r, ty, putByteArray(by + bytes0, r0, i, st))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 21:
validref(str, r, ty, st), okbytearray(r0, st), ∀ str, r, ty, st, r0, i. validref(str, r, ty, st) ∧ okbytearray(r0, st) → r = r0 ∨ validref(str, r, ty, putByteArray(bytes0, r0, i, st)) ⊦ r = r0, validref(str, r, ty, putByteArray(by ' + bytes0, r0, i, st))

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ by + bytes = by ' + bytes])]]