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Theorem oc-del-02
⊦ #oc(a0, x) ≤ #oc(a0, y) → ¬ #oc(a0, y -1l a) < #oc(a0, x -1l a)
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
View
the proof
Infos about the proof
Proved?: Yes
Interactions: 1
Proof steps: 2
Used lemmas:
in-05
,
del1
,
del1-01
,
oc-zero
,
Used spec theorems:
Used simplifier rules:
nat
/
le-ls-simp
nat
/
pred-03
nat
/
lels-01
nat-basic1
/
one-01
nat
/
ls
nat-basic1
/
f
nat
/
fle
list-del
/
in-01-01
nat
/
sub-ls
nat-basic2
/
a
nat-basic2
/
c