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Mirrors > Home > MPE Home > Th. List > 2ex | Structured version Visualization version Unicode version |
Description: 2 is a set (common case). (Contributed by David A. Wheeler, 8-Dec-2018.) |
Ref | Expression |
---|---|
2ex |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2cn 11091 | . 2 | |
2 | 1 | elexi 3213 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wcel 1990 cvv 3200 cc 9934 c2 11070 |
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-resscn 9993 ax-1cn 9994 ax-icn 9995 ax-addcl 9996 ax-addrcl 9997 ax-mulcl 9998 ax-mulrcl 9999 ax-i2m1 10004 ax-1ne0 10005 ax-rrecex 10008 ax-cnre 10009 |
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-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-uni 4437 df-br 4654 df-iota 5851 df-fv 5896 df-ov 6653 df-2 11079 |
This theorem is referenced by: fzprval 12401 fztpval 12402 funcnvs3 13659 funcnvs4 13660 wrd3tpop 13691 wrdl3s3 13705 pmtrprfval 17907 m2detleiblem3 20435 m2detleiblem4 20436 iblcnlem1 23554 gausslemma2dlem4 25094 2lgslem4 25131 selberglem1 25234 axlowdimlem4 25825 2wlkdlem4 26824 2pthdlem1 26826 umgrwwlks2on 26850 3wlkdlem4 27022 3wlkdlem5 27023 3pthdlem1 27024 3wlkdlem10 27029 upgr3v3e3cycl 27040 upgr4cycl4dv4e 27045 eulerpathpr 27100 ex-ima 27299 prodfzo03 30681 circlevma 30720 circlemethhgt 30721 hgt750lemg 30732 hgt750lemb 30734 hgt750lema 30735 hgt750leme 30736 tgoldbachgtde 30738 tgoldbachgt 30741 rabren3dioph 37379 refsum2cnlem1 39196 nnsum3primes4 41676 nnsum3primesgbe 41680 nnsum4primesodd 41684 nnsum4primesoddALTV 41685 zlmodzxzldeplem3 42291 zlmodzxzldeplem4 42292 |
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