- @â\9dªi1,fâ\9d« ≘ i2 → ∀j1,j2. ↑j1 = i1 → ↑j2 = i2 →
- â\88¨â\88¨ â\88\83â\88\83g. @â\9dªj1,gâ\9d« ≘ j2 & ⫯g = f
- | â\88\83â\88\83g. @â\9dªi1,gâ\9d« ≘ j2 & ↑g = f.
+ @â\9d¨i1,fâ\9d© ≘ i2 → ∀j1,j2. ↑j1 = i1 → ↑j2 = i2 →
+ â\88¨â\88¨ â\88\83â\88\83g. @â\9d¨j1,gâ\9d© ≘ j2 & ⫯g = f
+ | â\88\83â\88\83g. @â\9d¨i1,gâ\9d© ≘ j2 & ↑g = f.