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Theorem two-03
⊦ n ≤ 2 ∧ n ≠ 0 → (even(n) ↔ n = 2)
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: 0
Proof steps: 2
Used lemmas:
Even
,
Used spec theorems:
Used simplifier rules:
nat-mult
/
two-zero-01
nat-mult
/
twoeq
nat-mult
/
two-02
nat-basic2
/
succ
nat-basic2
/
one
nat-basic2
/
a
nat-basic2
/
c
nat-basic2
/
oz
nat-mult
/
rsucc-02
nat-mult
/
mult-a
nat-mult
/
mult-c
nat
/
le-add
nat-mult
/
zero-06