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Theorem infapp-to-ge-01

⊦ (x + nf).take(# x + n) = x + nf.take(n)

Type: A user defined theorem
Validity: The proof is valid.
Features: s, ls,
Comment:
Used by: infapp-to-ge,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 5
Used lemmas: get-infto, size-inf-to, add-list-fun-def,
Used spec theorems:
- list-getput/extension
- list-del/get-append-grt
Used simplifier rules:
- nat-basic/f
- nat/ls-le-simp
- nat/lels
- list/a
- list/len
- nat-basic/c
- nat-basic/a
- nat-basic/eq-01
- nat/le-def
- nat/ls-01
- list-del/get-append-less