Description: A prime not equal to 2 is odd. (Contributed by AV, 28-Jun-2021)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | oddn2prm | ⊢ ( 𝑁 ∈ ( ℙ ∖ { 2 } ) → ¬ 2 ∥ 𝑁 ) | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | nnoddn2prm | ⊢ ( 𝑁 ∈ ( ℙ ∖ { 2 } ) → ( 𝑁 ∈ ℕ ∧ ¬ 2 ∥ 𝑁 ) ) | |
| 2 | 1 | simprd | ⊢ ( 𝑁 ∈ ( ℙ ∖ { 2 } ) → ¬ 2 ∥ 𝑁 ) |