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Theorem one-03

⊦ m + n = 1 ↔ m = 0 ∧ n = 1 ∨ n = 0 ∧ m = 1

Type: A user defined theorem
Validity: The proof is valid.
Features: ws,
Comment:
Used by:
Used by units in proved state: set-basic, nat-div, nat-mult, nat-prime, list-perm, nat-pair, nat-even, list-last,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas: z-01, oz, succ, one-06, c, a, z-02, gen,
Used spec theorems:
- Used simplifier rules: