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Mirrors > Home > MPE Home > Th. List > Mathboxes > frinfm | Structured version Visualization version Unicode version |
Description: A subset of a well-founded set has an infimum. (Contributed by Jeff Madsen, 2-Sep-2009.) |
Ref | Expression |
---|---|
frinfm |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fri 5076 | . . . . 5 | |
2 | 1 | ancom1s 847 | . . . 4 |
3 | 2 | exp43 640 | . . 3 |
4 | 3 | 3imp2 1282 | . 2 |
5 | ssel2 3598 | . . . . . . . 8 | |
6 | 5 | adantrr 753 | . . . . . . 7 |
7 | vex 3203 | . . . . . . . . . . . 12 | |
8 | vex 3203 | . . . . . . . . . . . 12 | |
9 | 7, 8 | brcnv 5305 | . . . . . . . . . . 11 |
10 | 9 | biimpi 206 | . . . . . . . . . 10 |
11 | 10 | con3i 150 | . . . . . . . . 9 |
12 | 11 | ralimi 2952 | . . . . . . . 8 |
13 | 12 | ad2antll 765 | . . . . . . 7 |
14 | breq2 4657 | . . . . . . . . . . 11 | |
15 | 14 | rspcev 3309 | . . . . . . . . . 10 |
16 | 15 | ex 450 | . . . . . . . . 9 |
17 | 16 | ralrimivw 2967 | . . . . . . . 8 |
18 | 17 | ad2antrl 764 | . . . . . . 7 |
19 | 6, 13, 18 | jca32 558 | . . . . . 6 |
20 | 19 | ex 450 | . . . . 5 |
21 | 20 | reximdv2 3014 | . . . 4 |
22 | 21 | adantl 482 | . . 3 |
23 | 22 | 3ad2antr2 1227 | . 2 |
24 | 4, 23 | mpd 15 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wa 384 w3a 1037 wcel 1990 wne 2794 wral 2912 wrex 2913 wss 3574 c0 3915 class class class wbr 4653 wfr 5070 ccnv 5113 |
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-ne 2795 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-sn 4178 df-pr 4180 df-op 4184 df-br 4654 df-opab 4713 df-fr 5073 df-cnv 5122 |
This theorem is referenced by: welb 33531 |
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