Description: Definition of a 3-element virtual hypotheses collection. (Contributed by Alan Sare, 13-Jun-2015) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Assertion | df-vhc3 | ⊢ ( ( 𝜑 , 𝜓 , 𝜒 ) ↔ ( 𝜑 ∧ 𝜓 ∧ 𝜒 ) ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
0 | wph | ⊢ 𝜑 | |
1 | wps | ⊢ 𝜓 | |
2 | wch | ⊢ 𝜒 | |
3 | 0 1 2 | wvhc3 | ⊢ ( 𝜑 , 𝜓 , 𝜒 ) |
4 | 0 1 2 | w3a | ⊢ ( 𝜑 ∧ 𝜓 ∧ 𝜒 ) |
5 | 3 4 | wb | ⊢ ( ( 𝜑 , 𝜓 , 𝜒 ) ↔ ( 𝜑 ∧ 𝜓 ∧ 𝜒 ) ) |