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Mirrors > Home > MPE Home > Th. List > disjss3 | Structured version Visualization version Unicode version |
Description: Expand a disjoint collection with any number of empty sets. (Contributed by Mario Carneiro, 15-Nov-2016.) |
Ref | Expression |
---|---|
disjss3 | Disj Disj |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ral 2917 | . . . . . . 7 | |
2 | simprr 796 | . . . . . . . . . . . 12 | |
3 | n0i 3920 | . . . . . . . . . . . 12 | |
4 | 2, 3 | syl 17 | . . . . . . . . . . 11 |
5 | simpl 473 | . . . . . . . . . . . . 13 | |
6 | 5 | adantl 482 | . . . . . . . . . . . 12 |
7 | eldif 3584 | . . . . . . . . . . . . 13 | |
8 | simpl 473 | . . . . . . . . . . . . 13 | |
9 | 7, 8 | syl5bir 233 | . . . . . . . . . . . 12 |
10 | 6, 9 | mpand 711 | . . . . . . . . . . 11 |
11 | 4, 10 | mt3d 140 | . . . . . . . . . 10 |
12 | 11, 2 | jca 554 | . . . . . . . . 9 |
13 | 12 | ex 450 | . . . . . . . 8 |
14 | 13 | alimi 1739 | . . . . . . 7 |
15 | 1, 14 | sylbi 207 | . . . . . 6 |
16 | moim 2519 | . . . . . 6 | |
17 | 15, 16 | syl 17 | . . . . 5 |
18 | 17 | alimdv 1845 | . . . 4 |
19 | dfdisj2 4622 | . . . 4 Disj | |
20 | dfdisj2 4622 | . . . 4 Disj | |
21 | 18, 19, 20 | 3imtr4g 285 | . . 3 Disj Disj |
22 | 21 | adantl 482 | . 2 Disj Disj |
23 | disjss1 4626 | . . 3 Disj Disj | |
24 | 23 | adantr 481 | . 2 Disj Disj |
25 | 22, 24 | impbid 202 | 1 Disj Disj |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wb 196 wa 384 wal 1481 wceq 1483 wcel 1990 wmo 2471 wral 2912 cdif 3571 wss 3574 c0 3915 Disj wdisj 4620 |
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 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 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-rmo 2920 df-v 3202 df-dif 3577 df-in 3581 df-ss 3588 df-nul 3916 df-disj 4621 |
This theorem is referenced by: carsggect 30380 |
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