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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 563 | . 2 ⊢ (𝜑 ↔ (𝜑 ∧ 𝜓)) |
3 | 2 | biancomi 466 | 1 ⊢ (𝜑 ↔ (𝜓 ∧ 𝜑)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 210 df-an 400 |
This theorem is referenced by: anabs7 663 biadaniALT 820 orabs 996 prlem2 1051 dfeumo 2595 dfeu 2656 2moswapv 2691 2moswap 2706 exsnrex 4578 eliunxp 5672 asymref 5943 dffun9 6353 funcnv 6393 funcnv3 6394 f1ompt 6852 eufnfv 6969 dff1o6 7010 dfom2 7562 elxp4 7609 elxp5 7610 abexex 7654 dfoprab4 7735 tpostpos 7895 brwitnlem 8115 erovlem 8376 elixp2 8448 xpsnen 8584 elom3 9095 cardval2 9404 isinfcard 9503 infmap2 9629 elznn0nn 11983 zrevaddcl 12015 qrevaddcl 12358 hash2prb 13826 cotr2g 14327 climreu 14905 isprm3 16017 hashbc0 16331 imasleval 16806 xpscf 16830 isssc 17082 issubmndb 17962 isgim 18394 eldprd 19119 brric2 19493 islmim 19827 tgval2 21561 eltg2b 21564 snfil 22469 isms2 23057 setsms 23087 elii1 23540 phtpcer 23600 elovolm 24079 ellimc2 24480 limcun 24498 1cubr 25428 fsumvma2 25798 dchrelbas3 25822 2lgslem1b 25976 nbgrel 27130 rusgrnumwwlks 27760 isgrpo 28280 mdsl2i 30105 cvmdi 30107 rabfmpunirn 30416 zarcls 31227 eulerpartlemn 31749 bnj580 32295 bnj1049 32356 snmlval 32691 satf0suclem 32735 fmlasuc0 32744 elmthm 32936 imaindm 33135 dmscut 33385 madeval2 33403 brtxp2 33455 brpprod3a 33460 bj-elid6 34585 ismgmOLD 35288 brres2 35689 brxrn2 35787 redundpim3 36025 prtlem100 36155 islln2 36807 islpln2 36832 islvol2 36876 prjspeclsp 39606 en2pr 40246 pren2 40252 elmapintrab 40276 clcnvlem 40323 sprvalpw 43997 sprvalpwn0 44000 prprvalpw 44032 eliunxp2 44735 elbigo 44965 |
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