Description: A length 6 string is a word. (Contributed by Mario Carneiro, 26-Feb-2016)
Ref | Expression | ||
---|---|---|---|
Assertion | s6cli | ⊢ 〈“ 𝐴 𝐵 𝐶 𝐷 𝐸 𝐹 ”〉 ∈ Word V |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-s6 | ⊢ 〈“ 𝐴 𝐵 𝐶 𝐷 𝐸 𝐹 ”〉 = ( 〈“ 𝐴 𝐵 𝐶 𝐷 𝐸 ”〉 ++ 〈“ 𝐹 ”〉 ) | |
2 | s5cli | ⊢ 〈“ 𝐴 𝐵 𝐶 𝐷 𝐸 ”〉 ∈ Word V | |
3 | 1 2 | cats1cli | ⊢ 〈“ 𝐴 𝐵 𝐶 𝐷 𝐸 𝐹 ”〉 ∈ Word V |