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Mirrors > Home > MPE Home > Th. List > Mathboxes > bj-sngltag | Structured version Visualization version Unicode version |
Description: The singletonization and the tagging of a set contain the same singletons. (Contributed by BJ, 6-Oct-2018.) |
Ref | Expression |
---|---|
bj-sngltag | sngl tag |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bj-sngltagi 32970 | . 2 sngl tag | |
2 | df-bj-tag 32963 | . . . 4 tag sngl | |
3 | 2 | eleq2i 2693 | . . 3 tag sngl |
4 | elun 3753 | . . . 4 sngl sngl | |
5 | idd 24 | . . . . 5 sngl sngl | |
6 | elsni 4194 | . . . . . 6 | |
7 | snprc 4253 | . . . . . . 7 | |
8 | elex 3212 | . . . . . . . 8 | |
9 | 8 | pm2.24d 147 | . . . . . . 7 sngl |
10 | 7, 9 | syl5bir 233 | . . . . . 6 sngl |
11 | 6, 10 | syl5 34 | . . . . 5 sngl |
12 | 5, 11 | jaod 395 | . . . 4 sngl sngl |
13 | 4, 12 | syl5bi 232 | . . 3 sngl sngl |
14 | 3, 13 | syl5bi 232 | . 2 tag sngl |
15 | 1, 14 | impbid2 216 | 1 sngl tag |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wb 196 wo 383 wceq 1483 wcel 1990 cvv 3200 cun 3572 c0 3915 csn 4177 sngl bj-csngl 32953 tag bj-ctag 32962 |
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-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-sn 4178 df-bj-tag 32963 |
This theorem is referenced by: bj-tagcg 32973 bj-taginv 32974 |
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