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Mirrors > Home > MPE Home > Th. List > jao | Structured version Visualization version GIF version |
Description: Disjunction of antecedents. Compare Theorem *3.44 of [WhiteheadRussell] p. 113. (Contributed by NM, 5-Apr-1994.) (Proof shortened by Wolf Lammen, 4-Apr-2013.) |
Ref | Expression |
---|---|
jao | ⊢ ((𝜑 → 𝜓) → ((𝜒 → 𝜓) → ((𝜑 ∨ 𝜒) → 𝜓))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm3.44 960 | . 2 ⊢ (((𝜑 → 𝜓) ∧ (𝜒 → 𝜓)) → ((𝜑 ∨ 𝜒) → 𝜓)) | |
2 | 1 | ex 416 | 1 ⊢ ((𝜑 → 𝜓) → ((𝜒 → 𝜓) → ((𝜑 ∨ 𝜒) → 𝜓))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∨ wo 847 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 |
This theorem is referenced by: 3jao 1427 en3lplem2 9225 indpi 10518 bj-orim2 34470 jaodd 39894 jaoded 41857 suctrALT2VD 42127 suctrALT2 42128 en3lplem2VD 42135 hbimpgVD 42195 ax6e2ndeqVD 42200 suctrALTcf 42213 suctrALTcfVD 42214 ax6e2ndeqALT 42222 |
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