| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > nfe1 | Structured version Visualization version GIF version | ||
| Description: The setvar 𝑥 is not free in ∃𝑥𝜑. (Contributed by Mario Carneiro, 11-Aug-2016.) |
| Ref | Expression |
|---|---|
| nfe1 | ⊢ Ⅎ𝑥∃𝑥𝜑 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | hbe1 2184 | . 2 ⊢ (∃𝑥𝜑 → ∀𝑥∃𝑥𝜑) | |
| 2 | 1 | nf5i 2187 | 1 ⊢ Ⅎ𝑥∃𝑥𝜑 |
| Colors of variables: wff setvar class |
| Syntax hints: ∃wex 1806 Ⅎwnf 1810 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-10 2182 |
| This theorem depends on definitions: df-bi 210 df-ex 1807 df-nf 1811 |
| This theorem is referenced by: nfa1 2192 nfnf1 2195 sbalex 2284 nf6 2324 exdistrf 2485 nfeu1 2623 euor2 2647 2moexv 2661 moexexvw 2662 2moswapv 2663 2euexv 2665 eupicka 2668 mopick2 2671 moexex 2672 2moex 2674 2euex 2675 2moswap 2678 2mo 2682 2eu7 2691 2eu8 2692 nfre1 3296 ceqsexg 3621 morex 3691 intab 4947 nfopab1 5185 nfopab2 5186 axrep1 5243 axrep2 5245 axrep3 5246 axrep4OLD 5249 eusv2nf 5367 copsexgwOLD 5474 copsexg 5475 copsex2t 5476 mosubopt 5494 dfid3 5560 dmcossOLD 5967 imadif 6621 oprabidw 7442 nfoprab1 7472 nfoprab2 7473 nfoprab3 7474 zfcndrep 10598 zfcndpow 10600 zfcndreg 10601 zfcndinf 10602 reclem2pr 11032 ex-natded9.26 30710 brabgaf 32891 bnj607 35248 bnj849 35257 bnj1398 35366 bnj1449 35380 finminlem 36717 exisym1 36823 bj-alexbiex 37212 bj-exexbiex 37213 bj-biexal2 37219 bj-biexex 37222 bj-sbf3 37362 bj-axseprep 37598 bj-axreprepsep 37599 copsex2d 37670 sbexi 38651 ac6s6 38710 nfe2 42873 e2ebind 45163 e2ebindVD 45511 e2ebindALT 45528 stoweidlem57 46662 ovncvrrp 47169 ich2ex 48105 ichreuopeq 48110 reuopreuprim 48163 pgind 50379 |
| Copyright terms: Public domain | W3C validator |