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Theorem ni
⊦ x + a ' = y + z ∧ ¬ a ∈ z → z = []
Type: A user defined theorem
Validity: The proof is valid.
Features: forward, localforward,
Comment:
Used by:
in-16
,
inapp-07
,
inapp-12
,
last
,
Used by units in proved state:
path-reachable
,
olist
,
list-dup
,
Proof exists?: Yes
View
the proof
Infos about the proof
Proved?: Yes
Interactions: 1
Proof steps: 2
Used lemmas:
app-06
,
lastdiv
,
in-append
,
a
,
in-15
,
Used spec theorems:
Used simplifier rules: