Metamath Proof Explorer
Description: Inference form of dfvd2an . (Contributed by Alan Sare, 23-Apr-2015)
(Proof modification is discouraged.) (New usage is discouraged.)
|
|
Ref |
Expression |
|
Hypothesis |
dfvd2ani.1 |
⊢ ( ( 𝜑 , 𝜓 ) ▶ 𝜒 ) |
|
Assertion |
dfvd2ani |
⊢ ( ( 𝜑 ∧ 𝜓 ) → 𝜒 ) |
Proof
Step |
Hyp |
Ref |
Expression |
1 |
|
dfvd2ani.1 |
⊢ ( ( 𝜑 , 𝜓 ) ▶ 𝜒 ) |
2 |
|
dfvd2an |
⊢ ( ( ( 𝜑 , 𝜓 ) ▶ 𝜒 ) ↔ ( ( 𝜑 ∧ 𝜓 ) → 𝜒 ) ) |
3 |
1 2
|
mpbi |
⊢ ( ( 𝜑 ∧ 𝜓 ) → 𝜒 ) |