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| Mirrors > Home > MPE Home > Th. List > Mathboxes > ltcvrntr | Structured version Visualization version GIF version | ||
| Description: Non-transitive condition for the covers relation. (Contributed by NM, 18-Jun-2012.) |
| Ref | Expression |
|---|---|
| ltltncvr.b | ⊢ 𝐵 = (Base‘𝐾) |
| ltltncvr.s | ⊢ < = (lt‘𝐾) |
| ltltncvr.c | ⊢ 𝐶 = ( ⋖ ‘𝐾) |
| Ref | Expression |
|---|---|
| ltcvrntr | ⊢ ((𝐾 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 < 𝑌 ∧ 𝑌𝐶𝑍) → ¬ 𝑋𝐶𝑍)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltltncvr.b | . . . . 5 ⊢ 𝐵 = (Base‘𝐾) | |
| 2 | ltltncvr.s | . . . . 5 ⊢ < = (lt‘𝐾) | |
| 3 | ltltncvr.c | . . . . 5 ⊢ 𝐶 = ( ⋖ ‘𝐾) | |
| 4 | 1, 2, 3 | cvrlt 40464 | . . . 4 ⊢ (((𝐾 ∈ 𝐴 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵) ∧ 𝑌𝐶𝑍) → 𝑌 < 𝑍) |
| 5 | 4 | ex 418 | . . 3 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵) → (𝑌𝐶𝑍 → 𝑌 < 𝑍)) |
| 6 | 5 | 3adant3r1 1201 | . 2 ⊢ ((𝐾 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑌𝐶𝑍 → 𝑌 < 𝑍)) |
| 7 | 1, 2, 3 | ltltncvr 40617 | . 2 ⊢ ((𝐾 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 < 𝑌 ∧ 𝑌 < 𝑍) → ¬ 𝑋𝐶𝑍)) |
| 8 | 6, 7 | sylan2d 617 | 1 ⊢ ((𝐾 ∈ 𝐴 ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 < 𝑌 ∧ 𝑌𝐶𝑍) → ¬ 𝑋𝐶𝑍)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1569 ∈ wcel 2144 class class class wbr 5102 ‘cfv 6543 Basecbs 17396 ltcplt 18491 ⋖ ccvr 40456 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-iota 6497 df-fun 6545 df-fv 6551 df-covers 40460 |
| This theorem is used by: cvrntr 40619 |
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