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Mirrors > Home > MPE Home > Th. List > Mathboxes > polcon2N | Structured version Visualization version GIF version |
Description: Contraposition law for polarity. (Contributed by NM, 23-Mar-2012.) (New usage is discouraged.) |
Ref | Expression |
---|---|
2polss.a | ⊢ 𝐴 = (Atoms‘𝐾) |
2polss.p | ⊢ ⊥ = (⊥𝑃‘𝐾) |
Ref | Expression |
---|---|
polcon2N | ⊢ ((𝐾 ∈ HL ∧ 𝑌 ⊆ 𝐴 ∧ 𝑋 ⊆ ( ⊥ ‘𝑌)) → 𝑌 ⊆ ( ⊥ ‘𝑋)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2polss.a | . . . 4 ⊢ 𝐴 = (Atoms‘𝐾) | |
2 | 2polss.p | . . . 4 ⊢ ⊥ = (⊥𝑃‘𝐾) | |
3 | 1, 2 | 2polssN 37050 | . . 3 ⊢ ((𝐾 ∈ HL ∧ 𝑌 ⊆ 𝐴) → 𝑌 ⊆ ( ⊥ ‘( ⊥ ‘𝑌))) |
4 | 3 | 3adant3 1128 | . 2 ⊢ ((𝐾 ∈ HL ∧ 𝑌 ⊆ 𝐴 ∧ 𝑋 ⊆ ( ⊥ ‘𝑌)) → 𝑌 ⊆ ( ⊥ ‘( ⊥ ‘𝑌))) |
5 | 1, 2 | polssatN 37043 | . . . 4 ⊢ ((𝐾 ∈ HL ∧ 𝑌 ⊆ 𝐴) → ( ⊥ ‘𝑌) ⊆ 𝐴) |
6 | 5 | 3adant3 1128 | . . 3 ⊢ ((𝐾 ∈ HL ∧ 𝑌 ⊆ 𝐴 ∧ 𝑋 ⊆ ( ⊥ ‘𝑌)) → ( ⊥ ‘𝑌) ⊆ 𝐴) |
7 | 1, 2 | polcon3N 37052 | . . 3 ⊢ ((𝐾 ∈ HL ∧ ( ⊥ ‘𝑌) ⊆ 𝐴 ∧ 𝑋 ⊆ ( ⊥ ‘𝑌)) → ( ⊥ ‘( ⊥ ‘𝑌)) ⊆ ( ⊥ ‘𝑋)) |
8 | 6, 7 | syld3an2 1407 | . 2 ⊢ ((𝐾 ∈ HL ∧ 𝑌 ⊆ 𝐴 ∧ 𝑋 ⊆ ( ⊥ ‘𝑌)) → ( ⊥ ‘( ⊥ ‘𝑌)) ⊆ ( ⊥ ‘𝑋)) |
9 | 4, 8 | sstrd 3976 | 1 ⊢ ((𝐾 ∈ HL ∧ 𝑌 ⊆ 𝐴 ∧ 𝑋 ⊆ ( ⊥ ‘𝑌)) → 𝑌 ⊆ ( ⊥ ‘𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ w3a 1083 = wceq 1533 ∈ wcel 2110 ⊆ wss 3935 ‘cfv 6354 Atomscatm 36398 HLchlt 36485 ⊥𝑃cpolN 37037 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-rep 5189 ax-sep 5202 ax-nul 5209 ax-pow 5265 ax-pr 5329 ax-un 7460 ax-riotaBAD 36088 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4838 df-iun 4920 df-iin 4921 df-br 5066 df-opab 5128 df-mpt 5146 df-id 5459 df-xp 5560 df-rel 5561 df-cnv 5562 df-co 5563 df-dm 5564 df-rn 5565 df-res 5566 df-ima 5567 df-iota 6313 df-fun 6356 df-fn 6357 df-f 6358 df-f1 6359 df-fo 6360 df-f1o 6361 df-fv 6362 df-riota 7113 df-ov 7158 df-oprab 7159 df-undef 7938 df-proset 17537 df-poset 17555 df-plt 17567 df-lub 17583 df-glb 17584 df-join 17585 df-meet 17586 df-p0 17648 df-p1 17649 df-lat 17655 df-clat 17717 df-oposet 36311 df-ol 36313 df-oml 36314 df-covers 36401 df-ats 36402 df-atl 36433 df-cvlat 36457 df-hlat 36486 df-psubsp 36638 df-pmap 36639 df-polarityN 37038 |
This theorem is referenced by: polcon2bN 37055 osumcllem3N 37093 |
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