Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > 19.23t | Structured version Visualization version Unicode version |
Description: Closed form of Theorem 1977.23 of [Margaris] p. 90. See 19.23 2080. (Contributed by NM, 7-Nov-2005.) (Proof shortened by Wolf Lammen, 2-Jan-2018.) (Proof shortened by Wolf Lammen, 13-Aug-2020.) df-nf 1710 changed. (Revised by Wolf Lammen, 11-Sep-2021.) |
Ref | Expression |
---|---|
19.23t |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfnt 1782 | . . 3 | |
2 | 19.21t 2073 | . . 3 | |
3 | 1, 2 | syl 17 | . 2 |
4 | con34b 306 | . . 3 | |
5 | 4 | albii 1747 | . 2 |
6 | eximal 1707 | . 2 | |
7 | 3, 5, 6 | 3bitr4g 303 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wb 196 wal 1481 wex 1704 wnf 1708 |
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-12 2047 |
This theorem depends on definitions: df-bi 197 df-or 385 df-ex 1705 df-nf 1710 |
This theorem is referenced by: 19.23 2080 axie2 2597 r19.23t 3021 ceqsalt 3228 vtoclgft 3254 vtoclgftOLD 3255 sbciegft 3466 bj-ceqsalt0 32873 bj-ceqsalt1 32874 wl-equsald 33325 |
Copyright terms: Public domain | W3C validator |