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Theorem absls-05
⊦ abs(i) ≤ abs(i -1) ↔ i ≤ 0
Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by:
Used by units in proved state:
Proof exists?: Yes
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the proof
Infos about the proof
Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas:
sub-add-09
,
mone-01
,
sub-add-01
,
num-subadd
,
sub-sub
,
abs-05
,
Minus-def
,
abs-08
,
mone-06
,
numls-02
,
elim-sub
,
succ-02
,
sub-ls
,
abs-16
,
abs-09
,
le-def
,
sub-pred
,
Used spec theorems:
Used simplifier rules:
int-basic1
/
irref
int-basic2
/
add-a
int-basic2
/
add-c