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Theorem psh-03

⊦ m ≠ 0 → (m -1 = n ↔ m = n +1)

Type: A user defined theorem
Validity: The proof is valid.
Features: s, ls,
Comment:
Used by: elim-pred-c, ilf-02, numeral-1, prop-p, psh-04, psh-06, psu-01,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 3
Used lemmas: c, a, eq-01, elim-succ, succ,
Used spec theorems:
- Used simplifier rules: