Mathbox for Norm Megill |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > Mathboxes > leat2 | Structured version Visualization version GIF version |
Description: A nonzero poset element less than or equal to an atom equals the atom. (Contributed by NM, 6-Mar-2013.) |
Ref | Expression |
---|---|
leatom.b | ⊢ 𝐵 = (Base‘𝐾) |
leatom.l | ⊢ ≤ = (le‘𝐾) |
leatom.z | ⊢ 0 = (0.‘𝐾) |
leatom.a | ⊢ 𝐴 = (Atoms‘𝐾) |
Ref | Expression |
---|---|
leat2 | ⊢ (((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑃 ∈ 𝐴) ∧ (𝑋 ≠ 0 ∧ 𝑋 ≤ 𝑃)) → 𝑋 = 𝑃) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | leatom.b | . . . . . 6 ⊢ 𝐵 = (Base‘𝐾) | |
2 | leatom.l | . . . . . 6 ⊢ ≤ = (le‘𝐾) | |
3 | leatom.z | . . . . . 6 ⊢ 0 = (0.‘𝐾) | |
4 | leatom.a | . . . . . 6 ⊢ 𝐴 = (Atoms‘𝐾) | |
5 | 1, 2, 3, 4 | leatb 34579 | . . . . 5 ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑃 ∈ 𝐴) → (𝑋 ≤ 𝑃 ↔ (𝑋 = 𝑃 ∨ 𝑋 = 0 ))) |
6 | orcom 402 | . . . . . 6 ⊢ ((𝑋 = 𝑃 ∨ 𝑋 = 0 ) ↔ (𝑋 = 0 ∨ 𝑋 = 𝑃)) | |
7 | neor 2885 | . . . . . 6 ⊢ ((𝑋 = 0 ∨ 𝑋 = 𝑃) ↔ (𝑋 ≠ 0 → 𝑋 = 𝑃)) | |
8 | 6, 7 | bitri 264 | . . . . 5 ⊢ ((𝑋 = 𝑃 ∨ 𝑋 = 0 ) ↔ (𝑋 ≠ 0 → 𝑋 = 𝑃)) |
9 | 5, 8 | syl6bb 276 | . . . 4 ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑃 ∈ 𝐴) → (𝑋 ≤ 𝑃 ↔ (𝑋 ≠ 0 → 𝑋 = 𝑃))) |
10 | 9 | biimpd 219 | . . 3 ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑃 ∈ 𝐴) → (𝑋 ≤ 𝑃 → (𝑋 ≠ 0 → 𝑋 = 𝑃))) |
11 | 10 | com23 86 | . 2 ⊢ ((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑃 ∈ 𝐴) → (𝑋 ≠ 0 → (𝑋 ≤ 𝑃 → 𝑋 = 𝑃))) |
12 | 11 | imp32 449 | 1 ⊢ (((𝐾 ∈ OP ∧ 𝑋 ∈ 𝐵 ∧ 𝑃 ∈ 𝐴) ∧ (𝑋 ≠ 0 ∧ 𝑋 ≤ 𝑃)) → 𝑋 = 𝑃) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∨ wo 383 ∧ wa 384 ∧ w3a 1037 = wceq 1483 ∈ wcel 1990 ≠ wne 2794 class class class wbr 4653 ‘cfv 5888 Basecbs 15857 lecple 15948 0.cp0 17037 OPcops 34459 Atomscatm 34550 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-rep 4771 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-reu 2919 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-riota 6611 df-ov 6653 df-preset 16928 df-poset 16946 df-plt 16958 df-glb 16975 df-p0 17039 df-oposet 34463 df-covers 34553 df-ats 34554 |
This theorem is referenced by: dalemcea 34946 cdlemg12g 35937 |
Copyright terms: Public domain | W3C validator |