1. (x)[Fx ⊃ (Gx • x = n)]
2. Gn ⊃ (∃x)(Hx • x = e)
∴ Fm ⊃ He
3. Fm
4. Fm ⊃ (Gm • m = n)
5. Gm • m = n
6. Gm
7. m = n • Gm
8. m = n
9. Gn
10. (∃x)(Hx • x = e)
11. Hr • r = e
12. Hr
13. r = e • Hr
14. r = e
15. He
16. Fm ⊃ He
ACP
1 UI
3,4 MP
5 Simp
5 Com
7 Simp
6,8 Id
2,9 MP
10 EI
11 Simp
11 Com
13 Simp
12,14 Id
3-15 CP
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