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Mirrors > Home > ILE Home > Th. List > simp1bi | GIF version |
Description: Deduce a conjunct from a triple conjunction. (Contributed by Jonathan Ben-Naim, 3-Jun-2011.) |
Ref | Expression |
---|---|
3simp1bi.1 | ⊢ (𝜑 ↔ (𝜓 ∧ 𝜒 ∧ 𝜃)) |
Ref | Expression |
---|---|
simp1bi | ⊢ (𝜑 → 𝜓) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3simp1bi.1 | . . 3 ⊢ (𝜑 ↔ (𝜓 ∧ 𝜒 ∧ 𝜃)) | |
2 | 1 | biimpi 119 | . 2 ⊢ (𝜑 → (𝜓 ∧ 𝜒 ∧ 𝜃)) |
3 | 2 | simp1d 993 | 1 ⊢ (𝜑 → 𝜓) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ↔ wb 104 ∧ w3a 962 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 |
This theorem depends on definitions: df-bi 116 df-3an 964 |
This theorem is referenced by: limord 4317 smores2 6191 smofvon2dm 6193 smofvon 6196 errel 6438 lincmb01cmp 9789 iccf1o 9790 elfznn0 9897 elfzouz 9931 ef01bndlem 11466 sin01bnd 11467 cos01bnd 11468 sin01gt0 11471 cos01gt0 11472 sin02gt0 11473 coseq00topi 12919 coseq0negpitopi 12920 cosq34lt1 12934 |
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