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Related theorems GIF version |
| Description: Commute two sides of a biconditional in a deduction. |
| Ref | Expression |
|---|---|
| bicomd.1 | ⊢ (φ → (ψ ↔ χ)) |
| Ref | Expression |
|---|---|
| bicomd | ⊢ (φ → (χ ↔ ψ)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bicomd.1 | . 2 ⊢ (φ → (ψ ↔ χ)) | |
| 2 | bicom 523 | . 2 ⊢ ((ψ ↔ χ) ↔ (χ ↔ ψ)) | |
| 3 | 1, 2 | sylib 196 | 1 ⊢ (φ → (χ ↔ ψ)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 3 ↔ wb 144 |
| This theorem is referenced by: con1bid 530 bitr2d 532 bitr3d 533 bitr4d 534 syl5rbb 536 syl6rbb 540 ibir 596 pm5.54 687 baibr 690 pm5.5 737 bimsc1 755 ninba 774 sbco 1290 sbidm 1292 sbco2 1293 necon3bbid 1643 gencbvex 1884 clel3g 1938 moi2 1970 moi 1971 reu8 1982 sbhypf 1985 r19.9rzv 2403 ifboth 2429 iununi 2686 poeq2 2921 posn 2928 soeq2 2933 freq2 2953 tfinds2 3216 fconstfv 3963 isoid 4009 isoini 4014 isowe 4017 f1oweALT 4020 tfrlem5 4216 oaword 4319 oalimcl 4330 omword 4337 oeword 4353 nnaordex 4389 nnawordex 4390 pw2en 4587 carduni 5008 aleph11 5029 alephval3 5053 axrepndlem2 5099 lttri2 5667 xrlttri2 5709 muln0b 5849 lemul1 5973 lemul1OLD 5974 lt2msqi 6026 msq11i 6028 nn0ind-raph 6385 zindd 6386 rebtwnz 6394 qreccl 6412 qsqueeze 6420 iooshf 6522 om2uzlti 6661 2climnn 7305 2climnn0 7306 ef01tllem2OLD 7590 znnen 7714 gch-kn 7799 bastop1 7854 iscld2 7880 isopn2 7883 lmclimnn 8175 norm-i 9272 hoeq 9966 nmopgt0 10116 elnlfn 10132 irredi 10603 infi1 10735 fiiu 10738 cmpfun 10751 cnvref 10769 seqzp2 10918 cdrci 10994 hmph 11030 cnvhmph 11033 hmeogrp 11044 fillsb 11073 cnfilca 11088 rcfpfil 11095 isfuna 11288 subtr2 11396 cbvsbc 11398 ordiso 11426 omsubsdom 11442 compsub 11488 topbasfne 11560 limfilcf 11683 fcluscf 11724 resoprab2 11809 indexa 11845 sdc 11877 caushft 11916 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |
| This theorem depends on definitions: df-bi 145 df-an 223 |