Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > 3z | Structured version Visualization version GIF version |
Description: 3 is an integer. (Contributed by David A. Wheeler, 8-Dec-2018.) |
Ref | Expression |
---|---|
3z | ⊢ 3 ∈ ℤ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3nn 12061 | . 2 ⊢ 3 ∈ ℕ | |
2 | 1 | nnzi 12353 | 1 ⊢ 3 ∈ ℤ |
Copyright terms: Public domain | W3C validator |