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Theorem exeven

i % 2 = 0 ⊦ ∃ j. i = 2 * j

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: mod-twoeven, two-odd,
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: nummult-le-01, div-elim2, mod-ls-same-02, div-elim-pos,
Used spec theorems:
- Used simplifier rules: