| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 5871 4bc2eq6 11145 halfleoddlt 12588 ballotfilemonn 13148 strleun 13338 strle1g 13340 slotstnscsi 13429 slotsdnscsi 13457 slotsdifunifndx 13466 2irrexpqap 15892 lgslem2 15923 lgsdir2lem2 15951 lgsdir2lem3 15952 usgrexmpldifpr 16293 0grsubgr 16308 konigsberglem4 16535 konigsberglem5 16536 ex-dvds 16547 nconstwlpolem0 16898 |
| Copyright terms: Public domain | W3C validator |