Description: Modus ponens combined with restricted generalization. (Contributed by NM, 10-Aug-2004)
Ref | Expression | ||
---|---|---|---|
Hypotheses | mprg.1 | ⊢ ( ∀ 𝑥 ∈ 𝐴 𝜑 → 𝜓 ) | |
mprg.2 | ⊢ ( 𝑥 ∈ 𝐴 → 𝜑 ) | ||
Assertion | mprg | ⊢ 𝜓 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mprg.1 | ⊢ ( ∀ 𝑥 ∈ 𝐴 𝜑 → 𝜓 ) | |
2 | mprg.2 | ⊢ ( 𝑥 ∈ 𝐴 → 𝜑 ) | |
3 | 2 | rgen | ⊢ ∀ 𝑥 ∈ 𝐴 𝜑 |
4 | 3 1 | ax-mp | ⊢ 𝜓 |