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Related theorems GIF version |
| Description: Inference from Theorem 19.23 of [Margaris] p. 90. |
| Ref | Expression |
|---|---|
| 19.23aiv.1 | ⊢ (φ → ψ) |
| Ref | Expression |
|---|---|
| 19.23aiv | ⊢ (∃xφ → ψ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-17 973 | . 2 ⊢ (ψ → ∀xψ) | |
| 2 | 19.23aiv.1 | . 2 ⊢ (φ → ψ) | |
| 3 | 1, 2 | 19.23ai 1066 | 1 ⊢ (∃xφ → ψ) |
| Colors of variables: wff set class |
| Syntax hints: → wi 3 ∃wex 982 |
| This theorem is referenced by: 19.23aivv 1298 mo 1395 mopick 1435 zfext2 1464 gencl 1831 cgsexg 1834 gencbvex2 1842 vtocleg 1858 eqvinc 1886 uniiunlem 2135 eluni 2510 axsep2 2709 bm1.3ii 2711 intex 2734 unipw 2762 moabex 2772 nnullss 2774 exss 2775 mosubopt 2810 ssopab2 2828 reuunisn 2901 limuni3 3129 findsg 3163 tfindsg 3168 relop 3281 dmrnssfld 3363 elxp5 3460 unixp0 3524 ffoss 3717 fvopabn 3792 exfo 3828 tfrlem8 3924 tfrlem9 3925 fnoprabg 4018 erref 4281 ectocl 4308 ecoptocl 4309 mapprc 4332 map0b 4349 map0 4350 uniixp 4363 breng 4381 brdomg 4382 ener 4416 en0 4429 en1 4432 2dom 4433 undom 4444 xpdom2 4448 xpdom3 4451 pw2en 4452 mapen 4497 mapdom1 4498 mapdom2 4500 ssenen 4510 php 4519 0sdom1dom 4530 unfilem1 4560 unifiOLD 4570 fodomfi 4575 fodomfiOLD 4576 pm54.43 4581 inf3 4629 infeq5 4630 omex 4636 zfregs 4657 tz9.12lem1 4669 bnd2 4734 aceq3lem 4742 aceq4 4744 aceq5lem4 4748 aceq5lem5 4749 aceq5 4750 aceq6a 4751 aceq6b 4752 ac6lem 4764 ac6s 4766 kmlem2 4776 kmlem16 4790 numthlem 4793 weth 4797 brdom3 4811 brdom5 4812 brdom4 4813 brdom7disj 4814 brdom6disj 4815 unidom 4818 oncard 4839 carduni 4869 cardcf 4923 cfeq0 4926 cfsuc 4927 cfom 4928 ltbtwnpq 5096 ltaprlem 5162 reclem1pr 5168 reclem2pr 5169 reclem3pr 5170 map2psrpr 5232 supsrlem2 5238 suprelem 5271 renegcl 5428 0re 5452 redivcl 5800 nnunb 6072 isumshft 7204 isumshft2 7205 acdc3 7488 acdc2 7491 acdc5 7494 acdc 7496 infxpidmlem4 7556 infxpidmlem7 7559 infxpidmlem10 7562 infxpidmlem12 7564 infpss 7575 infmap2lem2 7582 tgval3t 7624 eltg3t 7625 bastop 7641 isgrp2i 8072 minvecex 8574 projlem 9212 shintcl 9288 pjrn 9642 strlem1 10172 uninqs 10436 infi1 10441 fine 10442 fiiu 10444 ficli 10462 fiv 10470 fiiu2 10473 inposet 10477 homcard 10525 fisub 10558 infi 10559 rcfpfillem2 10564 rcfpfillem3 10565 rcfpfillem4 10566 rcfpfillem6 10568 rcfpfil 10569 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-gen 965 ax-17 973 ax-4 975 ax-5o 977 ax-6o 980 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-ex 983 |