Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > pmtrfmvdn0 | Structured version Visualization version GIF version |
Description: A transposition moves at least one point. (Contributed by Stefan O'Rear, 23-Aug-2015.) |
Ref | Expression |
---|---|
pmtrrn.t | ⊢ 𝑇 = (pmTrsp‘𝐷) |
pmtrrn.r | ⊢ 𝑅 = ran 𝑇 |
Ref | Expression |
---|---|
pmtrfmvdn0 | ⊢ (𝐹 ∈ 𝑅 → dom (𝐹 ∖ I ) ≠ ∅) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2on0 8313 | . 2 ⊢ 2o ≠ ∅ | |
2 | pmtrrn.t | . . . . . . . 8 ⊢ 𝑇 = (pmTrsp‘𝐷) | |
3 | pmtrrn.r | . . . . . . . 8 ⊢ 𝑅 = ran 𝑇 | |
4 | eqid 2738 | . . . . . . . 8 ⊢ dom (𝐹 ∖ I ) = dom (𝐹 ∖ I ) | |
5 | 2, 3, 4 | pmtrfrn 19066 | . . . . . . 7 ⊢ (𝐹 ∈ 𝑅 → ((𝐷 ∈ V ∧ dom (𝐹 ∖ I ) ⊆ 𝐷 ∧ dom (𝐹 ∖ I ) ≈ 2o) ∧ 𝐹 = (𝑇‘dom (𝐹 ∖ I )))) |
6 | 5 | simpld 495 | . . . . . 6 ⊢ (𝐹 ∈ 𝑅 → (𝐷 ∈ V ∧ dom (𝐹 ∖ I ) ⊆ 𝐷 ∧ dom (𝐹 ∖ I ) ≈ 2o)) |
7 | 6 | simp3d 1143 | . . . . 5 ⊢ (𝐹 ∈ 𝑅 → dom (𝐹 ∖ I ) ≈ 2o) |
8 | enen1 8904 | . . . . 5 ⊢ (dom (𝐹 ∖ I ) ≈ 2o → (dom (𝐹 ∖ I ) ≈ ∅ ↔ 2o ≈ ∅)) | |
9 | 7, 8 | syl 17 | . . . 4 ⊢ (𝐹 ∈ 𝑅 → (dom (𝐹 ∖ I ) ≈ ∅ ↔ 2o ≈ ∅)) |
10 | en0 8803 | . . . 4 ⊢ (dom (𝐹 ∖ I ) ≈ ∅ ↔ dom (𝐹 ∖ I ) = ∅) | |
11 | en0 8803 | . . . 4 ⊢ (2o ≈ ∅ ↔ 2o = ∅) | |
12 | 9, 10, 11 | 3bitr3g 313 | . . 3 ⊢ (𝐹 ∈ 𝑅 → (dom (𝐹 ∖ I ) = ∅ ↔ 2o = ∅)) |
13 | 12 | necon3bid 2988 | . 2 ⊢ (𝐹 ∈ 𝑅 → (dom (𝐹 ∖ I ) ≠ ∅ ↔ 2o ≠ ∅)) |
14 | 1, 13 | mpbiri 257 | 1 ⊢ (𝐹 ∈ 𝑅 → dom (𝐹 ∖ I ) ≠ ∅) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ w3a 1086 = wceq 1539 ∈ wcel 2106 ≠ wne 2943 Vcvv 3432 ∖ cdif 3884 ⊆ wss 3887 ∅c0 4256 class class class wbr 5074 I cid 5488 dom cdm 5589 ran crn 5590 ‘cfv 6433 2oc2o 8291 ≈ cen 8730 pmTrspcpmtr 19049 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-om 7713 df-1o 8297 df-2o 8298 df-er 8498 df-en 8734 df-pmtr 19050 |
This theorem is referenced by: psgnunilem3 19104 |
Copyright terms: Public domain | W3C validator |