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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 5868 4bc2eq6 11132 halfleoddlt 12573 strleun 13306 strle1g 13308 slotstnscsi 13397 slotsdnscsi 13425 slotsdifunifndx 13434 2irrexpqap 15830 lgslem2 15861 lgsdir2lem2 15889 lgsdir2lem3 15890 usgrexmpldifpr 16231 0grsubgr 16246 konigsberglem4 16473 konigsberglem5 16474 ex-dvds 16485 nconstwlpolem0 16835 |
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