Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > rossspw | Structured version Visualization version Unicode version |
Description: A ring of sets is a collection of subsets of . (Contributed by Thierry Arnoux, 18-Jul-2020.) |
Ref | Expression |
---|---|
isros.1 |
Ref | Expression |
---|---|
rossspw |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | isros.1 | . . . 4 | |
2 | 1 | isros 30231 | . . 3 |
3 | 2 | simp1bi 1076 | . 2 |
4 | 3 | elpwid 4170 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wa 384 wceq 1483 wcel 1990 wral 2912 crab 2916 cdif 3571 cun 3572 wss 3574 c0 3915 cpw 4158 |
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-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-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pw 4160 |
This theorem is referenced by: rossros 30243 |
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