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| Mirrors > Home > MPE Home > Th. List > pm4.71ri | Structured version Visualization version GIF version | ||
| Description: Inference converting an implication to a biconditional with conjunction. Inference from Theorem *4.71 of [WhiteheadRussell] p. 120 (with conjunct reversed). (Contributed by NM, 1-Dec-2003.) |
| Ref | Expression |
|---|---|
| pm4.71ri.1 | ⊢ (𝜑 → 𝜓) |
| Ref | Expression |
|---|---|
| pm4.71ri | ⊢ (𝜑 ↔ (𝜓 ∧ 𝜑)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | pm4.71ri.1 | . . 3 ⊢ (𝜑 → 𝜓) | |
| 2 | 1 | pm4.71i 569 | . 2 ⊢ (𝜑 ↔ (𝜑 ∧ 𝜓)) |
| 3 | 2 | biancomi 468 | 1 ⊢ (𝜑 ↔ (𝜓 ∧ 𝜑)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
| This proof depends on definitions: df-bi 210 df-an 402 |
| This theorem is used by: anabs7 677 biadaniALT 833 orabs 1014 prlem2 1071 dfeumo 2566 dfeu 2625 2moswapv 2659 2moswap 2674 exsnrex 4648 eliunxp 5825 asymref 6118 imaindm 6304 dffun9 6569 funcnv 6609 funcnv3 6610 f1ompt 7110 eufnfv 7234 dff1o6 7282 dfom2 7870 elxp4 7925 elxp5 7926 abexex 7974 dfoprab4 8058 tpostpos 8248 brwitnlem 8498 erovlem 8817 elixp2 8905 xpsnen 9056 elom3 9624 ttrclse 9703 cardval2 9993 isinfcard 10092 infmap2 10216 elznn0nn 12622 zrevaddcl 12656 qrevaddcl 13013 hash2prb 14529 hash3tpb 14552 cotr2g 15039 climreu 15633 isprm3 16765 hashbc0 17089 imasleval 17619 xpscf 17643 isssc 17901 issubmndb 18902 isgim 19378 eldprd 20122 isbrric2 20653 islmim 21235 tgval2 23165 eltg2b 23168 snfil 24074 isms2 24660 setsms 24690 elii1 25147 phtpcer 25207 elovolm 25687 ellimc2 26089 limcun 26107 1cubr 27060 fsumvma2 27431 dchrelbas3 27455 2lgslem1b 27609 dmcuts 28037 madeval2 28079 made0 28109 nbgrel 29750 rusgrnumwwlks 30395 isgrpo 30922 mdsl2i 32747 cvmdi 32749 rabfmpunirn 33071 zarcls 34330 eulerpartlemn 34838 bnj580 35368 bnj1049 35429 snmlval 35862 satf0suclem 35906 fmlasuc0 35915 elmthm 36107 brtxp2 36410 brpprod3a 36415 bj-elid6 37873 ismgmOLD 38561 brres2 38982 ralmo 39069 brxrn2 39093 dfsuccl4 39183 redundpim3 39423 prtlem100 39693 islln2 40345 islpln2 40370 islvol2 40414 prjspeclsp 43404 onsucrn 44058 dflim5 44116 en2pr 44333 pren2 44339 elmapintrab 44362 clcnvlem 44409 sprvalpw 48289 sprvalpwn0 48292 prprvalpw 48324 clnbgrel 48653 eliunxp2 49173 elbigo 49390 |
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