Description: Equality inference for the directed integral. (Contributed by GG, 1-Sep-2025)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | ditgeq3i.1 | ⊢ 𝐶 = 𝐷 | |
| Assertion | ditgeq3i | ⊢ ⨜ [ 𝐴 → 𝐵 ] 𝐶 d 𝑥 = ⨜ [ 𝐴 → 𝐵 ] 𝐷 d 𝑥 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ditgeq3i.1 | ⊢ 𝐶 = 𝐷 | |
| 2 | eqid | ⊢ 𝐴 = 𝐴 | |
| 3 | eqid | ⊢ 𝐵 = 𝐵 | |
| 4 | 2 3 1 | ditgeq123i | ⊢ ⨜ [ 𝐴 → 𝐵 ] 𝐶 d 𝑥 = ⨜ [ 𝐴 → 𝐵 ] 𝐷 d 𝑥 |