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Theorem add-cancel-02

⊦ n∞1 = n∞1 + n∞2 ↔ ¬ ¬(n∞1 = ∞ ∨ n∞2 = ⌜0⌝ )

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by:
Used by units in proved state: mon-lim-filter-count,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas: add-all-zero, add-cancel-03, add-comm, add-assoc, add-all-inf,
Used spec theorems:
- Used simplifier rules:
  - nat-inf-basic/disj
  - nat-inf-basic/inj