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Theorem append-from-addsize

⊦ x1 + x0 from n + # x1 = x0 from n

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: append-from-size,
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: from-all, append-from-le, from-zero-l, append-from-gt,
Used spec theorems:
- Used simplifier rules:
  - nat/eq-01
  - nat-basic2/add-base
  - nat-basic2/c
  - nat-basic2/a
  - nat/le-add
  - nat/lels
  - list/Nil
  - list/a
  - nat/lels-01
  - nat-basic1/ref-1