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| Mirrors > Home > ILE Home > Th. List > 3pm3.2i | GIF version | ||
| Description: Infer conjunction of premises. (Contributed by NM, 10-Feb-1995.) |
| Ref | Expression |
|---|---|
| 3pm3.2i.1 | ⊢ 𝜑 |
| 3pm3.2i.2 | ⊢ 𝜓 |
| 3pm3.2i.3 | ⊢ 𝜒 |
| Ref | Expression |
|---|---|
| 3pm3.2i | ⊢ (𝜑 ∧ 𝜓 ∧ 𝜒) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3pm3.2i.1 | . . 3 ⊢ 𝜑 | |
| 2 | 3pm3.2i.2 | . . 3 ⊢ 𝜓 | |
| 3 | 1, 2 | pm3.2i 272 | . 2 ⊢ (𝜑 ∧ 𝜓) |
| 4 | 3pm3.2i.3 | . 2 ⊢ 𝜒 | |
| 5 | df-3an 1007 | . 2 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) ↔ ((𝜑 ∧ 𝜓) ∧ 𝜒)) | |
| 6 | 3, 4, 5 | mpbir2an 951 | 1 ⊢ (𝜑 ∧ 𝜓 ∧ 𝜒) |
| Colors of variables: wff set class |
| Syntax hints: ∧ wa 104 ∧ w3a 1005 |
| 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 1007 |
| This theorem is referenced by: mpbir3an 1206 3jaoi 1340 ftp 5874 4bc2eq6 11165 halfleoddlt 12608 ballotfilemonn 13168 strleun 13404 strle1g 13406 slotstnscsi 13495 slotsdnscsi 13523 slotsdifunifndx 13532 2irrexpqap 15972 lgslem2 16003 lgsdir2lem2 16031 lgsdir2lem3 16032 usgrexmpldifpr 16373 0grsubgr 16388 konigsberglem4 16615 konigsberglem5 16616 ex-dvds 16627 nconstwlpolem0 16988 |
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