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Theorem insorted
⊦ ¬ pos(char, sortedchars) < # sortedchars ↔ false
Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by:
val-total-01
,
Used by units in proved state:
Proof exists?: Yes
View
the proof
Infos about the proof
Proved?: Yes
Interactions: 2
Proof steps: 4
Used lemmas:
pos-str-03
,
pos-str-02
,
Length-empty
,
len-str-01
,
Sortedchars
,
Used spec theorems:
Used simplifier rules:
nat
/
lels
nat
/
not-zero
nat-basic2
/
a
nat-basic2
/
c