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Theorem i2i-pos

⊦ 0 < i → n→i(i→n(i)) = i

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: i2i-neg, i2i-pos-01, ls-fin-add, num-i2n-le, sub-same,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 3
Used lemmas: n2n, abs-02, abs-eq,
Used spec theorems:
- Used simplifier rules:
  - int-abs/forward-le-05
  - int-abs/abs-16