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Theorem get-last-nonempty

⊦ n = # x - 1 ∧ 0 < # x → x[n] = x.last

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by:
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 6
Used lemmas: get-last2,
Used spec theorems:
- Used simplifier rules:
  - nat-basic1/zero
  - nat/elim-pred-c
  - list-data/l
  - list/e-01
  - nat-basic2/c
  - nat-basic2/a
  - nat-basic2/eq-01
  - list/a
  - nat-basic2/succ
  - list/len-05
  - list/c