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Theorem sradsg 14785
Description: Distance function of a subring algebra. (Contributed by Mario Carneiro, 4-Oct-2015.) (Revised by Thierry Arnoux, 16-Jun-2019.) (Revised by AV, 29-Oct-2024.)
Hypotheses
Ref Expression
srapart.a  |-  ( ph  ->  A  =  ( (subringAlg  `  W ) `  S
) )
srapart.s  |-  ( ph  ->  S  C_  ( Base `  W ) )
srapart.ex  |-  ( ph  ->  W  e.  X )
Assertion
Ref Expression
sradsg  |-  ( ph  ->  ( dist `  W
)  =  ( dist `  A ) )

Proof of Theorem sradsg
StepHypRef Expression
1 srapart.a . 2  |-  ( ph  ->  A  =  ( (subringAlg  `  W ) `  S
) )
2 srapart.s . 2  |-  ( ph  ->  S  C_  ( Base `  W ) )
3 srapart.ex . 2  |-  ( ph  ->  W  e.  X )
4 dsslid 13571 . 2  |-  ( dist 
= Slot  ( dist `  ndx )  /\  ( dist `  ndx )  e.  NN )
5 slotsdnscsi 13577 . . . 4  |-  ( (
dist `  ndx )  =/=  (Scalar `  ndx )  /\  ( dist `  ndx )  =/=  ( .s `  ndx )  /\  ( dist `  ndx )  =/=  ( .i `  ndx ) )
65simp1i 1037 . . 3  |-  ( dist `  ndx )  =/=  (Scalar ` 
ndx )
76necomi 2505 . 2  |-  (Scalar `  ndx )  =/=  ( dist `  ndx )
85simp2i 1038 . . 3  |-  ( dist `  ndx )  =/=  ( .s `  ndx )
98necomi 2505 . 2  |-  ( .s
`  ndx )  =/=  ( dist `  ndx )
105simp3i 1039 . . 3  |-  ( dist `  ndx )  =/=  ( .i `  ndx )
1110necomi 2505 . 2  |-  ( .i
`  ndx )  =/=  ( dist `  ndx )
121, 2, 3, 4, 7, 9, 11sralemg 14775 1  |-  ( ph  ->  ( dist `  W
)  =  ( dist `  A ) )
Colors of variables:    wff set class
This proof depends on syntax axioms:    -> wi 4    = wceq 1402    e. wcel 2209    =/= wne 2420    C_ wss 3220   ` cfv 5377   ndxcnx 13349   Basecbs 13352  Scalarcsca 13434   .scvsca 13435   .icip 13436   distcds 13440  subringAlg csra 14770
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-coll 4246  ax-sep 4249  ax-pow 4311  ax-pr 4346  ax-un 4578  ax-setind 4684  ax-cnex 8270  ax-resscn 8271  ax-1cn 8272  ax-1re 8273  ax-icn 8274  ax-addcl 8275  ax-addrcl 8276  ax-mulcl 8277  ax-mulrcl 8278  ax-addcom 8279  ax-mulcom 8280  ax-addass 8281  ax-mulass 8282  ax-distr 8283  ax-i2m1 8284  ax-0lt1 8285  ax-1rid 8286  ax-0id 8287  ax-rnegex 8288  ax-precex 8289  ax-cnre 8290  ax-pre-ltirr 8291  ax-pre-ltwlin 8292  ax-pre-lttrn 8293  ax-pre-ltadd 8295  ax-pre-mulgt0 8296
This proof depends on definitions:  df-bi 117  df-3or 1010  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-nel 2516  df-ral 2533  df-rex 2534  df-reu 2535  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-int 3971  df-iun 4014  df-br 4131  df-opab 4193  df-mpt 4194  df-id 4438  df-xp 4780  df-rel 4781  df-cnv 4782  df-co 4783  df-dm 4784  df-rn 4785  df-res 4786  df-ima 4787  df-iota 5337  df-fun 5379  df-fn 5380  df-f 5381  df-f1 5382  df-fo 5383  df-f1o 5384  df-fv 5385  df-riota 6038  df-ov 6088  df-oprab 6089  df-mpo 6090  df-pnf 8362  df-mnf 8363  df-xr 8364  df-ltxr 8365  df-le 8366  df-sub 8499  df-neg 8500  df-inn 9305  df-2 9363  df-3 9364  df-4 9365  df-5 9366  df-6 9367  df-7 9368  df-8 9369  df-9 9370  df-n0 9564  df-z 9645  df-dec 9778  df-ndx 13355  df-slot 13356  df-base 13358  df-sets 13359  df-iress 13360  df-mulr 13445  df-sca 13447  df-vsca 13448  df-ip 13449  df-ds 13453  df-sra 14772
This theorem is used by:  rlmdsg  14800
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