![]() |
Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > reximddv | Structured version Visualization version GIF version |
Description: Deduction from Theorem 19.22 of [Margaris] p. 90. (Contributed by Thierry Arnoux, 7-Dec-2016.) |
Ref | Expression |
---|---|
reximddva.1 | ⊢ ((𝜑 ∧ (𝑥 ∈ 𝐴 ∧ 𝜓)) → 𝜒) |
reximddva.2 | ⊢ (𝜑 → ∃𝑥 ∈ 𝐴 𝜓) |
Ref | Expression |
---|---|
reximddv | ⊢ (𝜑 → ∃𝑥 ∈ 𝐴 𝜒) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | reximddva.2 | . 2 ⊢ (𝜑 → ∃𝑥 ∈ 𝐴 𝜓) | |
2 | reximddva.1 | . . . 4 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝐴 ∧ 𝜓)) → 𝜒) | |
3 | 2 | expr 641 | . . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝜓 → 𝜒)) |
4 | 3 | reximdva 3000 | . 2 ⊢ (𝜑 → (∃𝑥 ∈ 𝐴 𝜓 → ∃𝑥 ∈ 𝐴 𝜒)) |
5 | 1, 4 | mpd 15 | 1 ⊢ (𝜑 → ∃𝑥 ∈ 𝐴 𝜒) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 383 ∈ wcel 1977 ∃wrex 2897 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 |
This theorem depends on definitions: df-bi 196 df-an 385 df-ex 1696 df-ral 2901 df-rex 2902 |
This theorem is referenced by: reximddv2 3002 dedekind 10079 caucvgrlem 14251 isprm5 15257 drsdirfi 16761 sylow2 17864 gexex 18079 nrmsep 20971 regsep2 20990 locfincmp 21139 dissnref 21141 met1stc 22136 xrge0tsms 22445 cnheibor 22562 lmcau 22919 ismbf3d 23227 ulmdvlem3 23960 legov 25280 legtrid 25286 midexlem 25387 opphllem 25427 mideulem 25428 midex 25429 oppperpex 25445 hpgid 25458 lnperpex 25495 trgcopy 25496 grpoidinv 26746 pjhthlem2 27635 mdsymlem3 28648 xrge0tsmsd 29116 ballotlemfc0 29881 ballotlemfcc 29882 cvmliftlem15 30534 unblimceq0 31668 knoppndvlem18 31690 lhpexle3lem 34315 lhpex2leN 34317 cdlemg1cex 34894 nacsfix 36293 unxpwdom3 36683 rfcnnnub 38218 stoweidlem27 38920 |
Copyright terms: Public domain | W3C validator |