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Theorem one-01
⊦ y ≠ [] → (a ' = x + y ↔ x = [] ∧ a ' = y)
Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by:
eq-04
,
inapp-07
,
Used by units in proved state:
list-last
,
olist
,
infinite-append
,
list
,
Proof exists?: Yes
View
the proof
Infos about the proof
Proved?: Yes
Interactions: 1
Proof steps: 2
Used lemmas:
app-02-ant
,
c-03
,
c
,
c-04
,
a
,
Nil
,
Used spec theorems:
Used simplifier rules: