Description: Index value of the df-cco slot. (Contributed by Mario Carneiro, 7-Jan-2017)
Ref | Expression | ||
---|---|---|---|
Assertion | ccondx | ⊢ ( comp ‘ ndx ) = ; 1 5 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-cco | ⊢ comp = Slot ; 1 5 | |
2 | 1nn0 | ⊢ 1 ∈ ℕ0 | |
3 | 5nn | ⊢ 5 ∈ ℕ | |
4 | 2 3 | decnncl | ⊢ ; 1 5 ∈ ℕ |
5 | 1 4 | ndxarg | ⊢ ( comp ‘ ndx ) = ; 1 5 |