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Theorem int2bytes-minus-256

⊦ int2bytes(~256) = i2b(~1) ' + i2b(0) '

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: int2bytes-minus-256-01, int2bytes-rec-case, rightshift-8-01, rightshift-8-02,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 5
Used lemmas: bits2bytes-true, bits2bytes-rec, int2bytes,
Used spec theorems:
- int2bits/int2bits-neg-num
Used simplifier rules:
- list/bytelist/a
- list/bytelist/app-01
- list/bytelist/Last
- int2bits/bits2uint-one-02
- int2bits/bits2uint-zero
- int2bits/bits2int-pos
- list-last/bitlista/last-def
- list-del/bitlista/lastn-one
- list-del/bitlista/num-lastN
- list-del/bitlista/firstn-one
- list/bitlista/len
- list/bitlista/len-02
- bitopsaux/sgn-base-01
- bitopsaux/sgn-rec
- bitopsaux/succ-zero
- bitopsaux/succ-rec
- list/bitlista/a
- list/bitlista/c
- bitopsaux/inv-false
- bitopsaux/invert-one
- bitopsaux/invert-zero
- list/bitlista/Last
- list/bitlista/Two
- int2bits/uint2bits-one
- int2bits/uint2bits-pos-num