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| Mirrors > Home > MPE Home > Th. List > an4 | Structured version Visualization version GIF version | ||
| Description: Rearrangement of 4 conjuncts. (Contributed by NM, 10-Jul-1994.) |
| Ref | Expression |
|---|---|
| an4 | ⊢ (((𝜑 ∧ 𝜓) ∧ (𝜒 ∧ 𝜃)) ↔ ((𝜑 ∧ 𝜒) ∧ (𝜓 ∧ 𝜃))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | anass 474 | . 2 ⊢ (((𝜑 ∧ 𝜓) ∧ (𝜒 ∧ 𝜃)) ↔ (𝜑 ∧ (𝜓 ∧ (𝜒 ∧ 𝜃)))) | |
| 2 | an12 658 | . . 3 ⊢ ((𝜓 ∧ (𝜒 ∧ 𝜃)) ↔ (𝜒 ∧ (𝜓 ∧ 𝜃))) | |
| 3 | 2 | bianass 655 | . 2 ⊢ ((𝜑 ∧ (𝜓 ∧ (𝜒 ∧ 𝜃))) ↔ ((𝜑 ∧ 𝜒) ∧ (𝜓 ∧ 𝜃))) |
| 4 | 1, 3 | bitri 278 | 1 ⊢ (((𝜑 ∧ 𝜓) ∧ (𝜒 ∧ 𝜃)) ↔ ((𝜑 ∧ 𝜒) ∧ (𝜓 ∧ 𝜃))) |
| 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: an42 670 an4s 673 anandi 689 anandir 690 13an22anass 1379 an6 1474 reeanlem 3238 reu2 3690 rmo4 3695 rmo3f 3699 rmo3 3843 2reu1 3852 2reu4lem 4486 disjiun 5099 inxp 5820 xp11 6175 dfpo2 6301 fununi 6615 fun 6744 resoprab2 7535 sorpsscmpl 7737 xporderlem 8125 poxp 8126 poseq 8156 fprlem1 8299 frrlem15 9732 dfac5lem1 10119 zorn2lem6 10496 cju 12225 ixxin 13400 elfzo2 13702 xpcogend 15030 summo 15786 prodmo 16008 dfiso2 17846 issubmd 18887 gsumval3eu 19997 dvdsrtr 20475 isirred2 20528 domnmuln0 20837 isdomn3 20842 abvn0b 20968 lspsolvlem 21295 unocv 21859 pf1ind 22544 ordtrest2lem 23389 lmmo 23566 ptbasin 23763 txbasval 23792 txcnp 23806 txlm 23834 tx1stc 23836 tx2ndc 23837 isfild 24044 txflf 24192 isclmp 25285 mbfi1flimlem 25910 iblcnlem1 25976 iblre 25982 iblcn 25987 logfaclbnd 27415 ons2ind 28497 axcontlem4 29346 axcontlem7 29349 ocsh 31664 pjhthmo 31683 5oalem6 32040 cvnbtwn4 32670 superpos 32735 cdj3i 32822 smatrcl 34209 ordtrest2NEWlem 34335 cusgr3cyclex 35641 lineext 36581 outsideoftr 36634 hilbert1.2 36660 lineintmo 36662 neibastop1 36903 bj-inrab 37596 isbasisrelowllem1 38034 isbasisrelowllem2 38035 ptrest 38303 poimirlem26 38330 ismblfin 38345 unirep 38398 inixp 38412 ablo4pnp 38564 keridl 38716 ispridlc 38754 anan 38917 disjecxrn 39094 coss1cnvres 39189 br1cosscnvxrn 39246 dfeldisj3 39493 antisymrelres 39548 prtlem70 39664 lcvbr3 39830 cvrnbtwn4 40086 linepsubN 40559 pmapsub 40575 pmapjoin 40659 ltrnu 40928 diblsmopel 41978 pell1234qrmulcl 43615 ifpan23 44219 ifpidg 44250 ifpbibib 44269 uneqsn 44784 isthincd2 50248 |
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