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Mirrors > Home > MPE Home > Th. List > ispos2 | Structured version Visualization version Unicode version |
Description: A poset is an
antisymmetric preset.
EDITORIAL: could become the definition of poset. (Contributed by Stefan O'Rear, 1-Feb-2015.) |
Ref | Expression |
---|---|
ispos2.b | |
ispos2.l |
Ref | Expression |
---|---|
ispos2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3anan32 1050 | . . . . . . 7 | |
2 | 1 | ralbii 2980 | . . . . . 6 |
3 | r19.26 3064 | . . . . . 6 | |
4 | 2, 3 | bitri 264 | . . . . 5 |
5 | 4 | 2ralbii 2981 | . . . 4 |
6 | r19.26-2 3065 | . . . . 5 | |
7 | rr19.3v 3345 | . . . . . . 7 | |
8 | 7 | ralbii 2980 | . . . . . 6 |
9 | 8 | anbi2i 730 | . . . . 5 |
10 | 6, 9 | bitri 264 | . . . 4 |
11 | 5, 10 | bitri 264 | . . 3 |
12 | 11 | anbi2i 730 | . 2 |
13 | ispos2.b | . . 3 | |
14 | ispos2.l | . . 3 | |
15 | 13, 14 | ispos 16947 | . 2 |
16 | 13, 14 | isprs 16930 | . . . 4 |
17 | 16 | anbi1i 731 | . . 3 |
18 | anass 681 | . . 3 | |
19 | 17, 18 | bitri 264 | . 2 |
20 | 12, 15, 19 | 3bitr4i 292 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wa 384 w3a 1037 wceq 1483 wcel 1990 wral 2912 cvv 3200 class class class wbr 4653 cfv 5888 cbs 15857 cple 15948 cpreset 16926 cpo 16940 |
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-nul 4789 |
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-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-sbc 3436 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-iota 5851 df-fv 5896 df-preset 16928 df-poset 16946 |
This theorem is referenced by: posprs 16949 |
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