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Proof step 21 from proof junkref-putbar (previous step)

okbytearray(r2, st), junkref(`docs2store', r, putByteArray(bytes1, r2, i, st)), ∀ st, i, r2, r, bytes. # bytes < # bytes1 → (junkref(`docs2store', r, putByteArray(bytes, r2, i, st)) ∧ okbytearray(r2, st) → junkref(`docs2store', r, st)) ⊦ bytes1 = [], junkref(`docs2store', r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ bytes = [] ↔ ¬ (∃ by, bytes0. bytes = by ' + bytes0)
Proof step 20:
okbytearray(r2, st), junkref(`docs2store', r, putByteArray(bytes1, r2, i, st)), ∀ st, i, r2, r, bytes. # bytes < # bytes1 → (junkref(`docs2store', r, putByteArray(bytes, r2, i, st)) ∧ okbytearray(r2, st) → junkref(`docs2store', r, st)) ⊦ ∀ by, bytes0. bytes1 ≠ by ' + bytes0, junkref(`docs2store', r, st)

Rule argument

[speclemmaarg: ,bytes = [] ↔ ¬ (∃ by, bytes0. bytes = by ' + bytes0) ,[bytes] → [bytes1] ,F ,list ,bytelist ,elim-first ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (bytes1)]]