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| Mirrors > Home > MPE Home > Th. List > biantrur | Structured version Visualization version GIF version | ||
| Description: A wff is equivalent to its conjunction with truth. (Contributed by NM, 3-Aug-1994.) |
| Ref | Expression |
|---|---|
| biantrur.1 | ⊢ 𝜑 |
| Ref | Expression |
|---|---|
| biantrur | ⊢ (𝜓 ↔ (𝜑 ∧ 𝜓)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | biantrur.1 | . . 3 ⊢ 𝜑 | |
| 2 | 1 | biantru 529 | . 2 ⊢ (𝜓 ↔ (𝜓 ∧ 𝜑)) |
| 3 | 2 | biancomi 462 | 1 ⊢ (𝜓 ↔ (𝜑 ∧ 𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 |
| 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 207 df-an 396 |
| This theorem is referenced by: mpbiran 709 cases 1042 truan 1552 2sb5rf 2474 euae 2658 rexv 3466 reuv 3467 rmov 3468 rabab 3469 euxfrw 3677 euxfr 3679 euind 3680 dfdif3OLD 4068 ddif 4091 nssinpss 4217 nsspssun 4218 notabw 4263 vss 4396 reuprg0 4657 reuprg 4658 difsnpss 4761 sspr 4789 sstp 4790 disjprg 5092 mptv 5202 reusv2lem5 5345 oteqex2 5445 dfid4 5518 intirr 6073 xpcan 6132 resssxp 6226 fvopab6 6973 fnressn 7101 riotav 7318 mpov 7468 sorpss 7671 opabn1stprc 8000 fparlem2 8053 fnsuppres 8131 brtpos0 8173 naddrid 8609 sup0riota 9367 genpass 10918 nnwos 12826 hashbclem 14373 ccatlcan 14639 clim0 15427 gcd0id 16444 isdomn3 20646 pjfval2 21662 mat1dimbas 22414 pmatcollpw2lem 22719 isbasis3g 22891 opnssneib 23057 ssidcn 23197 qtopcld 23655 mdegleb 26023 vieta1 26274 lgsne0 27300 axpasch 28963 0wlk 30140 0clwlk 30154 shlesb1i 31410 chnlei 31509 pjneli 31747 cvexchlem 32392 dmdbr5ati 32446 elimifd 32567 fzo0opth 32832 1arithidom 33567 lmxrge0 34058 cntnevol 34334 bnj110 34963 vonf1owev 35251 goeleq12bg 35492 fmlafvel 35528 elpotr 35922 dfbigcup2 36040 bj-rexvw 37024 bj-rababw 37025 bj-brab2a1 37293 finxpreclem4 37538 wl-cases2-dnf 37656 wl-euae 37661 wl-dfclab 37729 cnambfre 37808 triantru3 38371 lub0N 39388 glb0N 39392 cvlsupr3 39543 ifpdfor2 43644 ifpdfor 43648 ifpim1 43652 ifpid2 43654 ifpim2 43655 ifpid2g 43676 ifpid1g 43677 ifpim23g 43678 ifpim1g 43684 ifpimimb 43687 rp-isfinite6 43701 rababg 43757 relnonrel 43770 dffrege115 44161 chnsubseqwl 47065 funressnfv 47231 dfnelbr2 47461 edgusgrclnbfin 48030 |
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