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Mathbox for Norm Megill |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > cvrletrN | Structured version Visualization version GIF version |
Description: Property of an element above a covering. (Contributed by NM, 7-Dec-2012.) (New usage is discouraged.) |
Ref | Expression |
---|---|
cvrletr.b | ⊢ 𝐵 = (Base‘𝐾) |
cvrletr.l | ⊢ ≤ = (le‘𝐾) |
cvrletr.s | ⊢ < = (lt‘𝐾) |
cvrletr.c | ⊢ 𝐶 = ( ⋖ ‘𝐾) |
Ref | Expression |
---|---|
cvrletrN | ⊢ ((𝐾 ∈ Poset ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋𝐶𝑌 ∧ 𝑌 ≤ 𝑍) → 𝑋 < 𝑍)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpll 766 | . . . 4 ⊢ (((𝐾 ∈ Poset ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) ∧ 𝑋𝐶𝑌) → 𝐾 ∈ Poset) | |
2 | simplr1 1212 | . . . 4 ⊢ (((𝐾 ∈ Poset ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) ∧ 𝑋𝐶𝑌) → 𝑋 ∈ 𝐵) | |
3 | simplr2 1213 | . . . 4 ⊢ (((𝐾 ∈ Poset ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) ∧ 𝑋𝐶𝑌) → 𝑌 ∈ 𝐵) | |
4 | simpr 488 | . . . 4 ⊢ (((𝐾 ∈ Poset ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) ∧ 𝑋𝐶𝑌) → 𝑋𝐶𝑌) | |
5 | cvrletr.b | . . . . 5 ⊢ 𝐵 = (Base‘𝐾) | |
6 | cvrletr.s | . . . . 5 ⊢ < = (lt‘𝐾) | |
7 | cvrletr.c | . . . . 5 ⊢ 𝐶 = ( ⋖ ‘𝐾) | |
8 | 5, 6, 7 | cvrlt 36566 | . . . 4 ⊢ (((𝐾 ∈ Poset ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋𝐶𝑌) → 𝑋 < 𝑌) |
9 | 1, 2, 3, 4, 8 | syl31anc 1370 | . . 3 ⊢ (((𝐾 ∈ Poset ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) ∧ 𝑋𝐶𝑌) → 𝑋 < 𝑌) |
10 | cvrletr.l | . . . . 5 ⊢ ≤ = (le‘𝐾) | |
11 | 5, 10, 6 | pltletr 17573 | . . . 4 ⊢ ((𝐾 ∈ Poset ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 < 𝑌 ∧ 𝑌 ≤ 𝑍) → 𝑋 < 𝑍)) |
12 | 11 | adantr 484 | . . 3 ⊢ (((𝐾 ∈ Poset ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) ∧ 𝑋𝐶𝑌) → ((𝑋 < 𝑌 ∧ 𝑌 ≤ 𝑍) → 𝑋 < 𝑍)) |
13 | 9, 12 | mpand 694 | . 2 ⊢ (((𝐾 ∈ Poset ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) ∧ 𝑋𝐶𝑌) → (𝑌 ≤ 𝑍 → 𝑋 < 𝑍)) |
14 | 13 | expimpd 457 | 1 ⊢ ((𝐾 ∈ Poset ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋𝐶𝑌 ∧ 𝑌 ≤ 𝑍) → 𝑋 < 𝑍)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1084 = wceq 1538 ∈ wcel 2111 class class class wbr 5030 ‘cfv 6324 Basecbs 16475 lecple 16564 Posetcpo 17542 ltcplt 17543 ⋖ ccvr 36558 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-ral 3111 df-rex 3112 df-rab 3115 df-v 3443 df-sbc 3721 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-br 5031 df-opab 5093 df-mpt 5111 df-id 5425 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-iota 6283 df-fun 6326 df-fv 6332 df-proset 17530 df-poset 17548 df-plt 17560 df-covers 36562 |
This theorem is referenced by: (None) |
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