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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 1011 | . 2 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) ↔ ((𝜑 ∧ 𝜓) ∧ 𝜒)) | |
| 6 | 3, 4, 5 | mpbir2an 955 | 1 ⊢ (𝜑 ∧ 𝜓 ∧ 𝜒) |
| Colors of variables: wff set class |
| Syntax hints: ∧ wa 104 ∧ w3a 1009 |
| 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 1011 |
| This theorem is referenced by: mpbir3an 1210 3jaoi 1344 ftp 5894 4bc2eq6 11196 halfleoddlt 12644 ballotfilemonn 13204 strleun 13441 strle1g 13443 slotstnscsi 13532 slotsdnscsi 13560 slotsdifunifndx 13569 2irrexpqap 16063 lgslem2 16103 lgsdir2lem2 16131 lgsdir2lem3 16132 usgrexmpldifpr 16473 0grsubgr 16488 konigsberglem4 16715 konigsberglem5 16716 ex-dvds 16727 nconstwlpolem0 17087 |
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