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Mirrors > Home > MPE Home > Th. List > tsrdir | Structured version Visualization version Unicode version |
Description: A totally ordered set is a directed set. (Contributed by Jeff Hankins, 25-Nov-2009.) (Revised by Mario Carneiro, 22-Nov-2013.) |
Ref | Expression |
---|---|
tsrdir |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | tsrps 17221 | . . . 4 | |
2 | psrel 17203 | . . . 4 | |
3 | 1, 2 | syl 17 | . . 3 |
4 | psref2 17204 | . . . . 5 | |
5 | inss1 3833 | . . . . 5 | |
6 | 4, 5 | syl6eqssr 3656 | . . . 4 |
7 | 1, 6 | syl 17 | . . 3 |
8 | 3, 7 | jca 554 | . 2 |
9 | pstr2 17205 | . . . 4 | |
10 | 1, 9 | syl 17 | . . 3 |
11 | psdmrn 17207 | . . . . . . 7 | |
12 | 1, 11 | syl 17 | . . . . . 6 |
13 | 12 | simpld 475 | . . . . 5 |
14 | 13 | sqxpeqd 5141 | . . . 4 |
15 | eqid 2622 | . . . . . . 7 | |
16 | 15 | istsr 17217 | . . . . . 6 |
17 | 16 | simprbi 480 | . . . . 5 |
18 | relcoi2 5663 | . . . . . . . 8 | |
19 | 3, 18 | syl 17 | . . . . . . 7 |
20 | cnvresid 5968 | . . . . . . . . 9 | |
21 | cnvss 5294 | . . . . . . . . . 10 | |
22 | 7, 21 | syl 17 | . . . . . . . . 9 |
23 | 20, 22 | syl5eqssr 3650 | . . . . . . . 8 |
24 | coss1 5277 | . . . . . . . 8 | |
25 | 23, 24 | syl 17 | . . . . . . 7 |
26 | 19, 25 | eqsstr3d 3640 | . . . . . 6 |
27 | relcnv 5503 | . . . . . . . 8 | |
28 | relcoi1 5664 | . . . . . . . 8 | |
29 | 27, 28 | ax-mp 5 | . . . . . . 7 |
30 | relcnvfld 5666 | . . . . . . . . . . 11 | |
31 | 3, 30 | syl 17 | . . . . . . . . . 10 |
32 | 31 | reseq2d 5396 | . . . . . . . . 9 |
33 | 32, 7 | eqsstr3d 3640 | . . . . . . . 8 |
34 | coss2 5278 | . . . . . . . 8 | |
35 | 33, 34 | syl 17 | . . . . . . 7 |
36 | 29, 35 | syl5eqssr 3650 | . . . . . 6 |
37 | 26, 36 | unssd 3789 | . . . . 5 |
38 | 17, 37 | sstrd 3613 | . . . 4 |
39 | 14, 38 | eqsstr3d 3640 | . . 3 |
40 | 10, 39 | jca 554 | . 2 |
41 | eqid 2622 | . . 3 | |
42 | 41 | isdir 17232 | . 2 |
43 | 8, 40, 42 | mpbir2and 957 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wa 384 wceq 1483 wcel 1990 cun 3572 cin 3573 wss 3574 cuni 4436 cid 5023 cxp 5112 ccnv 5113 cdm 5114 crn 5115 cres 5116 ccom 5118 wrel 5119 cps 17198 ctsr 17199 cdir 17228 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-fun 5890 df-ps 17200 df-tsr 17201 df-dir 17230 |
This theorem is referenced by: (None) |
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