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| Mirrors > Home > MPE Home > Th. List > biancomi | Structured version Visualization version GIF version | ||
| Description: Commuting conjunction in a biconditional. (Contributed by Peter Mazsa, 17-Jun-2018.) |
| Ref | Expression |
|---|---|
| biancomi.1 | ⊢ (𝜑 ↔ (𝜒 ∧ 𝜓)) |
| Ref | Expression |
|---|---|
| biancomi | ⊢ (𝜑 ↔ (𝜓 ∧ 𝜒)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | biancomi.1 | . 2 ⊢ (𝜑 ↔ (𝜒 ∧ 𝜓)) | |
| 2 | ancom 466 | . 2 ⊢ ((𝜓 ∧ 𝜒) ↔ (𝜒 ∧ 𝜓)) | |
| 3 | 1, 2 | bitr4i 281 | 1 ⊢ (𝜑 ↔ (𝜓 ∧ 𝜒)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ 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: biantrur 540 rbaibr 547 pm4.71ri 570 anbi2ci 637 anbi1ci 638 anbi12ci 641 an12 658 an32 659 mpbiran2 723 3anan32 1113 eu6lem 2598 elon2 6363 fununi 6604 fnopabg 6665 eqfnfv3 7020 respreima 7054 fsn 7125 brtpos2 8228 tpostpos 8242 oeeu 8591 mapval2 8879 xrltlen 13230 ssfzoulel 13849 xpcogend 15080 dfgcd2 16669 isffth2 18040 resscntz 19494 fiidomfld 20979 1stcelcls 23727 txflf 24272 fclsrest 24290 tsmssubm 24409 blres 24697 xrtgioo 25073 isncvsngp 25417 itg1climres 25982 ellimc3 26146 lgsquadlem1 27656 lgsquadlem2 27657 wlkson 30154 0clwlk 30640 dmrab 33012 qusker 33829 bnj594 35462 kardexen 35750 satf0 36052 bj-elid6 38005 bj-imdirco 38025 wl-df4-3mintru2 38324 poimirlem4 38456 rabeqel 39103 iss2 39190 ifp1bi 44440 prprelprb 48515 prprspr2 48516 dfsclnbgr6 48872 dfidom2 49356 eliunxp2 49362 |
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