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Proof step 6 from proof bytes2bytes-first-pos (previous step)

b2i(int2bytes(bytes2int(by ' + bytes)).first) < 0, b2i(by) < 0, 0 ≤ b2i(int2bytes(bytes2int(by ' + bytes)).first), b2i(by) < 0 ⊦ b2i(int2bytes(bytes2int(by ' + bytes)).first) < b2i(int2bytes(bytes2int(by ' + bytes)).first)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 7:
⊦ i < j ∧ j ≤ j0 → i < j0
Proof step 8:
¬(b2i(int2bytes(bytes2int(by ' + bytes)).first) < 0 ∧ 0 ≤ b2i(int2bytes(bytes2int(by ' + bytes)).first)), b2i(int2bytes(bytes2int(by ' + bytes)).first) < 0, b2i(by) < 0, 0 ≤ b2i(int2bytes(bytes2int(by ' + bytes)).first), b2i(by) < 0 ⊦ b2i(int2bytes(bytes2int(by ' + bytes)).first) < b2i(int2bytes(bytes2int(by ' + bytes)).first)

Rule argument

seq: ⊦ i < j ∧ j ≤ j0 → i < j0 subst: [i, j, j0] → [b2i(int2bytes(bytes2int(by ' + bytes)).first), 0, b2i(int2bytes(bytes2int(by ' + bytes)).first)] rotate: F spec: int-abs inst: name: forward-lsle

Additional information

Used terms: b2i(int2bytes(bytes2int(by ' + bytes)).first), 0, b2i(int2bytes(bytes2int(by ' + bytes)).first)