Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > ssrelf | Structured version Visualization version Unicode version |
Description: A subclass relationship depends only on a relation's ordered pairs. Theorem 3.2(i) of [Monk1] p. 33. (Contributed by NM, 2-Aug-1994.) (Proof shortened by Andrew Salmon, 27-Aug-2011.) (Revised by Thierry Arnoux, 6-Nov-2017.) |
Ref | Expression |
---|---|
eqrelrd2.1 | |
eqrelrd2.2 | |
eqrelrd2.3 | |
eqrelrd2.4 | |
eqrelrd2.5 | |
eqrelrd2.6 |
Ref | Expression |
---|---|
ssrelf |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqrelrd2.3 | . . . 4 | |
2 | eqrelrd2.5 | . . . 4 | |
3 | 1, 2 | nfss 3596 | . . 3 |
4 | eqrelrd2.4 | . . . . 5 | |
5 | eqrelrd2.6 | . . . . 5 | |
6 | 4, 5 | nfss 3596 | . . . 4 |
7 | ssel 3597 | . . . 4 | |
8 | 6, 7 | alrimi 2082 | . . 3 |
9 | 3, 8 | alrimi 2082 | . 2 |
10 | eleq1 2689 | . . . . . . . . . . 11 | |
11 | eleq1 2689 | . . . . . . . . . . 11 | |
12 | 10, 11 | imbi12d 334 | . . . . . . . . . 10 |
13 | 12 | biimprcd 240 | . . . . . . . . 9 |
14 | 13 | 2alimi 1740 | . . . . . . . 8 |
15 | 4 | nfcri 2758 | . . . . . . . . . . . 12 |
16 | 5 | nfcri 2758 | . . . . . . . . . . . 12 |
17 | 15, 16 | nfim 1825 | . . . . . . . . . . 11 |
18 | 17 | 19.23 2080 | . . . . . . . . . 10 |
19 | 18 | albii 1747 | . . . . . . . . 9 |
20 | 1 | nfcri 2758 | . . . . . . . . . . 11 |
21 | 2 | nfcri 2758 | . . . . . . . . . . 11 |
22 | 20, 21 | nfim 1825 | . . . . . . . . . 10 |
23 | 22 | 19.23 2080 | . . . . . . . . 9 |
24 | 19, 23 | bitri 264 | . . . . . . . 8 |
25 | 14, 24 | sylib 208 | . . . . . . 7 |
26 | 25 | com23 86 | . . . . . 6 |
27 | 26 | a2d 29 | . . . . 5 |
28 | 27 | alimdv 1845 | . . . 4 |
29 | df-rel 5121 | . . . . 5 | |
30 | dfss2 3591 | . . . . 5 | |
31 | elvv 5177 | . . . . . . 7 | |
32 | 31 | imbi2i 326 | . . . . . 6 |
33 | 32 | albii 1747 | . . . . 5 |
34 | 29, 30, 33 | 3bitri 286 | . . . 4 |
35 | dfss2 3591 | . . . 4 | |
36 | 28, 34, 35 | 3imtr4g 285 | . . 3 |
37 | 36 | com12 32 | . 2 |
38 | 9, 37 | impbid2 216 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wal 1481 wceq 1483 wex 1704 wnf 1708 wcel 1990 wnfc 2751 cvv 3200 wss 3574 cop 4183 cxp 5112 wrel 5119 |
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-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 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-opab 4713 df-xp 5120 df-rel 5121 |
This theorem is referenced by: eqrelrd2 29426 |
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