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Theorem ls-04

⊦ ¬ m < n ↔ ¬ ¬(m = n ∨ n < m)

Type: A user defined theorem
Validity: The proof is valid.
Features: localsimp,
Comment:
Used by: lf, lf-01, lf-02, lf-03, lf-04, lf-05, lf-06, lf-07, lf-08, prop-ls, prop-p-01, psh-07, trans,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 1
Used lemmas: ls-03, ls-02,
Used spec theorems:
- Used simplifier rules: