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Related theorems GIF version |
| Description: Inference adding existential quantifier to antecedent and consequent. |
| Ref | Expression |
|---|---|
| 19.22i.1 | ⊢ (φ → ψ) |
| Ref | Expression |
|---|---|
| 19.22i | ⊢ (∃xφ → ∃xψ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 19.22 722 | . 2 ⊢ (∀x(φ → ψ) → (∃xφ → ∃xψ)) | |
| 2 | 19.22i.1 | . 2 ⊢ (φ → ψ) | |
| 3 | 1, 2 | mpg 684 | 1 ⊢ (∃xφ → ∃xψ) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ∃wex 678 |
| This theorem is referenced by: excomim 727 19.12 729 19.23ai 746 19.40 773 eqvin.l1 851 sbimi 854 sbequi 876 mo 1020 eumo0 1022 eupickb 1056 mopick2 1057 moexex 1058 2euex 1061 2eu2ex 1063 2exeu 1066 rexex 1242 r19.22i2 1274 cgsex2g 1368 cgsex4g 1369 vtoclf 1377 vtocl2 1379 vtocl3 1380 cla4gf 1394 axrep 1473 zfaus 1480 bm1.3ii 1481 nalset 1482 zfnul 1746 mosubop 1911 euuni 1954 ssiun 2018 iununi 2037 ralxp 2456 xpss 2465 dmco 2570 dmcosseq 2572 imassrn 2611 dminss 2648 imainss 2649 zfrep6 2744 fv3 2839 abrexexlem1 2910 tz7.48-1 2994 ssoprab2i 3036 enssdom 3287 unblem2 3432 infcntss 3443 inf1 3458 inf5 3472 omex 3475 scott0 3542 bnd 3548 aceq3 3556 aceq4 3557 ac5b 3574 ac6 3576 ac6s 3577 ac6s2 3578 kmlem1 3580 kmlem2 3581 kmlem13 3592 cflim 3704 axpowndlem2 3744 axacndlem4 3756 prnmadd 3894 1idpr 3927 ltexprlem4 3939 reclem1pr 3950 reclem2pr 3951 recexpr 3954 suplem1pr 3955 suplem2pr 3956 recexsrlem 4006 suppsr2 4017 suppsr3 4018 axsup 4088 infxpidmlem8 4940 infmap2lem1 4951 osumlem5 5534 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-gen 677 |
| This theorem depends on definitions: df-bi 128 df-an 198 df-ex 679 |