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Mirrors > Home > MPE Home > Th. List > str0 | Structured version Visualization version Unicode version |
Description: All components of the empty set are empty sets. (Contributed by Stefan O'Rear, 27-Nov-2014.) (Revised by Mario Carneiro, 7-Dec-2014.) |
Ref | Expression |
---|---|
str0.a | Slot |
Ref | Expression |
---|---|
str0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0ex 4790 | . . 3 | |
2 | str0.a | . . 3 Slot | |
3 | 1, 2 | strfvn 15879 | . 2 |
4 | 0fv 6227 | . 2 | |
5 | 3, 4 | eqtr2i 2645 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wceq 1483 c0 3915 cfv 5888 Slot cslot 15856 |
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-8 1992 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-pow 4843 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-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-opab 4713 df-mpt 4730 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-iota 5851 df-fun 5890 df-fv 5896 df-slot 15861 |
This theorem is referenced by: base0 15912 strfvi 15913 setsnid 15915 resslem 15933 oppchomfval 16374 fuchom 16621 xpchomfval 16819 xpccofval 16822 0pos 16954 oduleval 17131 frmdplusg 17391 oppgplusfval 17778 symgplusg 17809 mgpplusg 18493 opprmulfval 18625 sralem 19177 srasca 19181 sravsca 19182 sraip 19183 psrplusg 19381 psrmulr 19384 psrvscafval 19390 opsrle 19475 ply1plusgfvi 19612 psr1sca2 19621 ply1sca2 19624 zlmlem 19865 zlmvsca 19870 thlle 20041 thloc 20043 resstopn 20990 tnglem 22444 tngds 22452 ttglem 25756 iedgval0 25932 resvlem 29831 mendplusgfval 37755 mendmulrfval 37757 mendsca 37759 mendvscafval 37760 |
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