Metamath Proof Explorer


Theorem s8cli

Description: A length 8 string is a word. (Contributed by Mario Carneiro, 26-Feb-2016)

Ref Expression
Assertion s8cli ⟨“ABCDEFGH”⟩WordV

Proof

Step Hyp Ref Expression
1 df-s8 ⟨“ABCDEFGH”⟩=⟨“ABCDEFG”⟩++⟨“H”⟩
2 s7cli ⟨“ABCDEFG”⟩WordV
3 1 2 cats1cli ⟨“ABCDEFGH”⟩WordV