This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.
Description: Alternate definition for the commutes relation. ( cmbr4i analog.) (Contributed by NM, 10-Nov-2011) (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | cmtbr4.b | ⊢ 𝐵 = ( Base ‘ 𝐾 ) | |
| cmtbr4.l | ⊢ ≤ = ( le ‘ 𝐾 ) | ||
| cmtbr4.j | ⊢ ∨ = ( join ‘ 𝐾 ) | ||
| cmtbr4.m | ⊢ ∧ = ( meet ‘ 𝐾 ) | ||
| cmtbr4.o | ⊢ ⊥ = ( oc ‘ 𝐾 ) | ||
| cmtbr4.c | ⊢ 𝐶 = ( cm ‘ 𝐾 ) | ||
| Assertion | cmtbr4N | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( 𝑋 𝐶 𝑌 ↔ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cmtbr4.b | ⊢ 𝐵 = ( Base ‘ 𝐾 ) | |
| 2 | cmtbr4.l | ⊢ ≤ = ( le ‘ 𝐾 ) | |
| 3 | cmtbr4.j | ⊢ ∨ = ( join ‘ 𝐾 ) | |
| 4 | cmtbr4.m | ⊢ ∧ = ( meet ‘ 𝐾 ) | |
| 5 | cmtbr4.o | ⊢ ⊥ = ( oc ‘ 𝐾 ) | |
| 6 | cmtbr4.c | ⊢ 𝐶 = ( cm ‘ 𝐾 ) | |
| 7 | 1 3 4 5 6 | cmtbr3N | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( 𝑋 𝐶 𝑌 ↔ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) = ( 𝑋 ∧ 𝑌 ) ) ) |
| 8 | omllat | ⊢ ( 𝐾 ∈ OML → 𝐾 ∈ Lat ) | |
| 9 | 1 2 4 | latmle2 | ⊢ ( ( 𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( 𝑋 ∧ 𝑌 ) ≤ 𝑌 ) |
| 10 | 8 9 | syl3an1 | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( 𝑋 ∧ 𝑌 ) ≤ 𝑌 ) |
| 11 | breq1 | ⊢ ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) = ( 𝑋 ∧ 𝑌 ) → ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 ↔ ( 𝑋 ∧ 𝑌 ) ≤ 𝑌 ) ) | |
| 12 | 10 11 | syl5ibrcom | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) = ( 𝑋 ∧ 𝑌 ) → ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 ) ) |
| 13 | 8 | 3ad2ant1 | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → 𝐾 ∈ Lat ) |
| 14 | simp2 | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → 𝑋 ∈ 𝐵 ) | |
| 15 | omlop | ⊢ ( 𝐾 ∈ OML → 𝐾 ∈ OP ) | |
| 16 | 15 | 3ad2ant1 | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → 𝐾 ∈ OP ) |
| 17 | 1 5 | opoccl | ⊢ ( ( 𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ) → ( ⊥ ‘ 𝑋 ) ∈ 𝐵 ) |
| 18 | 16 14 17 | syl2anc | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( ⊥ ‘ 𝑋 ) ∈ 𝐵 ) |
| 19 | simp3 | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → 𝑌 ∈ 𝐵 ) | |
| 20 | 1 3 | latjcl | ⊢ ( ( 𝐾 ∈ Lat ∧ ( ⊥ ‘ 𝑋 ) ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ∈ 𝐵 ) |
| 21 | 13 18 19 20 | syl3anc | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ∈ 𝐵 ) |
| 22 | 1 2 4 | latmle1 | ⊢ ( ( 𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ∈ 𝐵 ) → ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑋 ) |
| 23 | 13 14 21 22 | syl3anc | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑋 ) |
| 24 | 23 | anim1i | ⊢ ( ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) ∧ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 ) → ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑋 ∧ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 ) ) |
| 25 | 24 | ex | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 → ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑋 ∧ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 ) ) ) |
| 26 | 1 4 | latmcl | ⊢ ( ( 𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ∈ 𝐵 ) → ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ∈ 𝐵 ) |
| 27 | 13 14 21 26 | syl3anc | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ∈ 𝐵 ) |
| 28 | 1 2 4 | latlem12 | ⊢ ( ( 𝐾 ∈ Lat ∧ ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ∈ 𝐵 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) ) → ( ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑋 ∧ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 ) ↔ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ ( 𝑋 ∧ 𝑌 ) ) ) |
| 29 | 13 27 14 19 28 | syl13anc | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑋 ∧ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 ) ↔ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ ( 𝑋 ∧ 𝑌 ) ) ) |
| 30 | 25 29 | sylibd | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 → ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ ( 𝑋 ∧ 𝑌 ) ) ) |
| 31 | 1 2 3 | latlej2 | ⊢ ( ( 𝐾 ∈ Lat ∧ ( ⊥ ‘ 𝑋 ) ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → 𝑌 ≤ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) |
| 32 | 13 18 19 31 | syl3anc | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → 𝑌 ≤ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) |
| 33 | 1 2 4 | latmlem2 | ⊢ ( ( 𝐾 ∈ Lat ∧ ( 𝑌 ∈ 𝐵 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ∈ 𝐵 ∧ 𝑋 ∈ 𝐵 ) ) → ( 𝑌 ≤ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) → ( 𝑋 ∧ 𝑌 ) ≤ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ) ) |
| 34 | 13 19 21 14 33 | syl13anc | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( 𝑌 ≤ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) → ( 𝑋 ∧ 𝑌 ) ≤ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ) ) |
| 35 | 32 34 | mpd | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( 𝑋 ∧ 𝑌 ) ≤ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ) |
| 36 | 30 35 | jctird | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 → ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ ( 𝑋 ∧ 𝑌 ) ∧ ( 𝑋 ∧ 𝑌 ) ≤ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ) ) ) |
| 37 | 1 4 | latmcl | ⊢ ( ( 𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( 𝑋 ∧ 𝑌 ) ∈ 𝐵 ) |
| 38 | 8 37 | syl3an1 | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( 𝑋 ∧ 𝑌 ) ∈ 𝐵 ) |
| 39 | 1 2 | latasymb | ⊢ ( ( 𝐾 ∈ Lat ∧ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ∈ 𝐵 ∧ ( 𝑋 ∧ 𝑌 ) ∈ 𝐵 ) → ( ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ ( 𝑋 ∧ 𝑌 ) ∧ ( 𝑋 ∧ 𝑌 ) ≤ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ) ↔ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) = ( 𝑋 ∧ 𝑌 ) ) ) |
| 40 | 13 27 38 39 | syl3anc | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ ( 𝑋 ∧ 𝑌 ) ∧ ( 𝑋 ∧ 𝑌 ) ≤ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ) ↔ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) = ( 𝑋 ∧ 𝑌 ) ) ) |
| 41 | 36 40 | sylibd | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 → ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) = ( 𝑋 ∧ 𝑌 ) ) ) |
| 42 | 12 41 | impbid | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) = ( 𝑋 ∧ 𝑌 ) ↔ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 ) ) |
| 43 | 7 42 | bitrd | ⊢ ( ( 𝐾 ∈ OML ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ) → ( 𝑋 𝐶 𝑌 ↔ ( 𝑋 ∧ ( ( ⊥ ‘ 𝑋 ) ∨ 𝑌 ) ) ≤ 𝑌 ) ) |