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Mirrors > Home > MPE Home > Th. List > Mathboxes > cvrnrefN | Structured version Visualization version GIF version |
Description: The covers relation is not reflexive. (cvnref 30554 analog.) (Contributed by NM, 1-Nov-2012.) (New usage is discouraged.) |
Ref | Expression |
---|---|
cvrne.b | ⊢ 𝐵 = (Base‘𝐾) |
cvrne.c | ⊢ 𝐶 = ( ⋖ ‘𝐾) |
Ref | Expression |
---|---|
cvrnrefN | ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵) → ¬ 𝑋𝐶𝑋) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2738 | . 2 ⊢ 𝑋 = 𝑋 | |
2 | simpll 763 | . . . . 5 ⊢ (((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵) ∧ 𝑋𝐶𝑋) → 𝐾 ∈ 𝐴) | |
3 | simplr 765 | . . . . 5 ⊢ (((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵) ∧ 𝑋𝐶𝑋) → 𝑋 ∈ 𝐵) | |
4 | simpr 484 | . . . . 5 ⊢ (((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵) ∧ 𝑋𝐶𝑋) → 𝑋𝐶𝑋) | |
5 | cvrne.b | . . . . . 6 ⊢ 𝐵 = (Base‘𝐾) | |
6 | cvrne.c | . . . . . 6 ⊢ 𝐶 = ( ⋖ ‘𝐾) | |
7 | 5, 6 | cvrne 37222 | . . . . 5 ⊢ (((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) ∧ 𝑋𝐶𝑋) → 𝑋 ≠ 𝑋) |
8 | 2, 3, 3, 4, 7 | syl31anc 1371 | . . . 4 ⊢ (((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵) ∧ 𝑋𝐶𝑋) → 𝑋 ≠ 𝑋) |
9 | 8 | ex 412 | . . 3 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵) → (𝑋𝐶𝑋 → 𝑋 ≠ 𝑋)) |
10 | 9 | necon2bd 2958 | . 2 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵) → (𝑋 = 𝑋 → ¬ 𝑋𝐶𝑋)) |
11 | 1, 10 | mpi 20 | 1 ⊢ ((𝐾 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵) → ¬ 𝑋𝐶𝑋) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 = wceq 1539 ∈ wcel 2108 ≠ wne 2942 class class class wbr 5070 ‘cfv 6418 Basecbs 16840 ⋖ ccvr 37203 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-rab 3072 df-v 3424 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-iota 6376 df-fun 6420 df-fv 6426 df-plt 17963 df-covers 37207 |
This theorem is referenced by: (None) |
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