Description: Equality theorem for the range Cartesian product, deduction form. (Contributed by Peter Mazsa, 7-Sep-2021)
Ref | Expression | ||
---|---|---|---|
Hypothesis | xrneq1d.1 | ⊢ ( 𝜑 → 𝐴 = 𝐵 ) | |
Assertion | xrneq1d | ⊢ ( 𝜑 → ( 𝐴 ⋉ 𝐶 ) = ( 𝐵 ⋉ 𝐶 ) ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | xrneq1d.1 | ⊢ ( 𝜑 → 𝐴 = 𝐵 ) | |
2 | xrneq1 | ⊢ ( 𝐴 = 𝐵 → ( 𝐴 ⋉ 𝐶 ) = ( 𝐵 ⋉ 𝐶 ) ) | |
3 | 1 2 | syl | ⊢ ( 𝜑 → ( 𝐴 ⋉ 𝐶 ) = ( 𝐵 ⋉ 𝐶 ) ) |