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Mirrors > Home > MPE Home > Th. List > Mathboxes > atlltn0 | Structured version Visualization version GIF version |
Description: A lattice element greater than zero is nonzero. (Contributed by NM, 1-Jun-2012.) |
Ref | Expression |
---|---|
atlltne0.b | ⊢ 𝐵 = (Base‘𝐾) |
atlltne0.s | ⊢ < = (lt‘𝐾) |
atlltne0.z | ⊢ 0 = (0.‘𝐾) |
Ref | Expression |
---|---|
atlltn0 | ⊢ ((𝐾 ∈ AtLat ∧ 𝑋 ∈ 𝐵) → ( 0 < 𝑋 ↔ 𝑋 ≠ 0 )) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl 472 | . . 3 ⊢ ((𝐾 ∈ AtLat ∧ 𝑋 ∈ 𝐵) → 𝐾 ∈ AtLat) | |
2 | atlltne0.b | . . . . 5 ⊢ 𝐵 = (Base‘𝐾) | |
3 | atlltne0.z | . . . . 5 ⊢ 0 = (0.‘𝐾) | |
4 | 2, 3 | atl0cl 33608 | . . . 4 ⊢ (𝐾 ∈ AtLat → 0 ∈ 𝐵) |
5 | 4 | adantr 480 | . . 3 ⊢ ((𝐾 ∈ AtLat ∧ 𝑋 ∈ 𝐵) → 0 ∈ 𝐵) |
6 | simpr 476 | . . 3 ⊢ ((𝐾 ∈ AtLat ∧ 𝑋 ∈ 𝐵) → 𝑋 ∈ 𝐵) | |
7 | eqid 2610 | . . . 4 ⊢ (le‘𝐾) = (le‘𝐾) | |
8 | atlltne0.s | . . . 4 ⊢ < = (lt‘𝐾) | |
9 | 7, 8 | pltval 16783 | . . 3 ⊢ ((𝐾 ∈ AtLat ∧ 0 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → ( 0 < 𝑋 ↔ ( 0 (le‘𝐾)𝑋 ∧ 0 ≠ 𝑋))) |
10 | 1, 5, 6, 9 | syl3anc 1318 | . 2 ⊢ ((𝐾 ∈ AtLat ∧ 𝑋 ∈ 𝐵) → ( 0 < 𝑋 ↔ ( 0 (le‘𝐾)𝑋 ∧ 0 ≠ 𝑋))) |
11 | necom 2835 | . . 3 ⊢ (𝑋 ≠ 0 ↔ 0 ≠ 𝑋) | |
12 | 2, 7, 3 | atl0le 33609 | . . . 4 ⊢ ((𝐾 ∈ AtLat ∧ 𝑋 ∈ 𝐵) → 0 (le‘𝐾)𝑋) |
13 | 12 | biantrurd 528 | . . 3 ⊢ ((𝐾 ∈ AtLat ∧ 𝑋 ∈ 𝐵) → ( 0 ≠ 𝑋 ↔ ( 0 (le‘𝐾)𝑋 ∧ 0 ≠ 𝑋))) |
14 | 11, 13 | syl5rbb 272 | . 2 ⊢ ((𝐾 ∈ AtLat ∧ 𝑋 ∈ 𝐵) → (( 0 (le‘𝐾)𝑋 ∧ 0 ≠ 𝑋) ↔ 𝑋 ≠ 0 )) |
15 | 10, 14 | bitrd 267 | 1 ⊢ ((𝐾 ∈ AtLat ∧ 𝑋 ∈ 𝐵) → ( 0 < 𝑋 ↔ 𝑋 ≠ 0 )) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 195 ∧ wa 383 = wceq 1475 ∈ wcel 1977 ≠ wne 2780 class class class wbr 4583 ‘cfv 5804 Basecbs 15695 lecple 15775 ltcplt 16764 0.cp0 16860 AtLatcal 33569 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-rep 4699 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-reu 2903 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-id 4953 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-riota 6511 df-plt 16781 df-glb 16798 df-p0 16862 df-atl 33603 |
This theorem is referenced by: isat3 33612 |
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