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Mirrors > Home > ILE Home > Th. List > mp3and | GIF version |
Description: A deduction based on modus ponens. (Contributed by Mario Carneiro, 24-Dec-2016.) |
Ref | Expression |
---|---|
mp3and.1 | ⊢ (𝜑 → 𝜓) |
mp3and.2 | ⊢ (𝜑 → 𝜒) |
mp3and.3 | ⊢ (𝜑 → 𝜃) |
mp3and.4 | ⊢ (𝜑 → ((𝜓 ∧ 𝜒 ∧ 𝜃) → 𝜏)) |
Ref | Expression |
---|---|
mp3and | ⊢ (𝜑 → 𝜏) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mp3and.1 | . . 3 ⊢ (𝜑 → 𝜓) | |
2 | mp3and.2 | . . 3 ⊢ (𝜑 → 𝜒) | |
3 | mp3and.3 | . . 3 ⊢ (𝜑 → 𝜃) | |
4 | 1, 2, 3 | 3jca 1177 | . 2 ⊢ (𝜑 → (𝜓 ∧ 𝜒 ∧ 𝜃)) |
5 | mp3and.4 | . 2 ⊢ (𝜑 → ((𝜓 ∧ 𝜒 ∧ 𝜃) → 𝜏)) | |
6 | 4, 5 | mpd 13 | 1 ⊢ (𝜑 → 𝜏) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ w3a 978 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 |
This theorem depends on definitions: df-bi 117 df-3an 980 |
This theorem is referenced by: eqsuptid 6995 eqinftid 7019 updjud 7080 seq3f1olemstep 10500 suprzcl2dc 11955 bezoutlemsup 12009 mhmlem 12977 |
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